Justin Yackoski 发现，Linux 内核中的 Atheros L2 以太网驱动程序无法正确启用分散/收集 I/O。远程攻击者可利用此问题从内核内存中获取可能的敏感信息。(CVE-2016-2117)

Jann Horn 发现 eCryptfs 不当尝试使用较低文件系统的 mmap() 处理程序，而其并没有实现该处理程序，造成发生递归页面错误。本地非特权攻击者可利用来造成拒绝服务（系统崩溃）或可能以管理权限执行任意代码。(CVE-2016-1583)

Jason A. Donenfeld 发现，当在 Linux 内核的 OZMO USB 中使用 wifi 设备驱动程序时发现多个越界读取错误。远程攻击者可利用此问题造成拒绝服务（系统崩溃），或从内核内存中获取可能的敏感信息。(CVE-2015-4004)

Ralf Spenneberg 发现 Linux 内核的 GTCO 数字化器 USB 设备驱动程序未正确验证端点描述符。具有物理访问权限的攻击者可利用此问题造成拒绝服务（系统崩溃）。(CVE-2016-2187)

Hector Marco 和 Ismael Ripoll 发现，如果禁用了堆栈消耗资源限制，Linux 内核会针对在 32 位模式下运行的 x86 进程不当禁用地址空间布局随机化 (ASLR)。本地攻击者可利用此问题来更轻松地利用 setuid/setgid 程序中的现有漏洞。
(CVE-2016-3672)

Andrey Konovalov 发现，Linux 内核中的 CDC 网络控制模型 USB 驱动程序如果稍后发生错误，将无法取消排入队列的工作事件，进而导致释放后使用。具有物理访问权限的攻击者可利用此问题造成拒绝服务（系统崩溃）。(CVE-2016-3951)

已发现当在 Linux 内核的 USB/IP 实现中处理传入数据包时，可发生越界写入。远程攻击者可利用此问题造成拒绝服务（系统崩溃）或可能执行任意代码。(CVE-2016-3955)

Vitaly Kuznetsov 发现，Linux 内核未正确隐藏 X86 半虚拟化客户机中的 hugetlbfs 支持。客户机操作系统中的攻击者可造成拒绝服务（客户机系统崩溃）。
(CVE-2016-3961)

Kangjie Lu 在 Linux 内核的 ANSI/IEEE 802.2 LLC 类型 2 支持实现中发现一个信息泄漏。本地攻击者可利用此问题从内核内存获取潜在敏感信息。(CVE-2016-4485)

Kangjie Lu 在 Linux 内核的路由 netlink 套接字接口 (rtnetlink) 实现中发现一个信息泄漏。本地攻击者可利用此问题从内核内存获取潜在敏感信息。(CVE-2016-4486)

Jann Horn 发现，Linux 内核中的 InfiniBand 接口可被迫覆盖内核内存。本地非特权攻击者可利用此问题，在加载 InifiniBand 相关内核模块的系统上获得管理权限。(CVE-2016-4565)

发现在某些情况下，Linux 内核无法正确处理传播的挂载。本地非特权攻击者可利用此问题造成拒绝服务（系统崩溃）。
(CVE-2016-4581)。

请注意，Tenable Network Security 已直接从 Ubuntu 安全公告中提取上述描述块。Tenable 已尝试在不引入其他问题的情况下尽可能进行了自动整理和排版。

Ben Hawkes discovered that the Linux netfilter implementation did not correctly perform validation when handling IPT_SO_SET_REPLACE events.
A local unprivileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-3134)

Vitaly Kuznetsov discovered that the Linux kernel did not properly suppress hugetlbfs support in X86 paravirtualized guests. An attacker in the guest OS could cause a denial of service (guest system crash).
(CVE-2016-3961)

It was discovered that the keyring implementation in the Linux kernel did not ensure a data structure was initialized before referencing it after an error condition occurred. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-4470)

Kangjie Lu discovered an information leak in the netlink implementation of the Linux kernel. A local attacker could use this to obtain sensitive information from kernel memory. (CVE-2016-5243).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The 4.4.8 update contains a number of important fixes across the tree
---- The 4.4.7 update contains a number of important fixes across the tree

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3006-1 advisory.

    Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables     scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from     kernel memory. (CVE-2016-2117)

    Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem     that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could     use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative     privileges. (CVE-2016-1583)

    Multiple race conditions where discovered in the Linux kernel's ext4 file system. A local user could     exploit this flaw to cause a denial of service (disk corruption) by writing to a page that is associated     with a different users file after unsynchronized hole punching and page-fault handling. (CVE-2015-8839)

    Ralf Spenneberg discovered that the Linux kernel's GTCO digitizer USB device driver did not properly     validate endpoint descriptors. An attacker with physical access could use this to cause a denial of     service (system crash). (CVE-2016-2187)

    Vitaly Kuznetsov discovered that the Linux kernel did not properly suppress hugetlbfs support in X86     paravirtualized guests. An attacker in the guest OS could cause a denial of service (guest system crash).
    (CVE-2016-3961)

    Kangjie Lu discovered an information leak in the ANSI/IEEE 802.2 LLC type 2 Support implementations in the     Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel     memory. (CVE-2016-4485)

    Kangjie Lu discovered an information leak in the routing netlink socket interface (rtnetlink)     implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive     information from kernel memory. (CVE-2016-4486)

    Jann Horn discovered that the extended Berkeley Packet Filter (eBPF) implementation in the Linux kernel     could overflow reference counters on systems with more than 32GB of physical ram and with RLIMIT_MEMLOCK     set to infinite. A local unprivileged attacker could use to create a use-after- free situation, causing a     denial of service (system crash) or possibly gain administrative privileges. (CVE-2016-4558)

    Jann Horn discovered that the InfiniBand interfaces within the Linux kernel could be coerced into     overwriting kernel memory. A local unprivileged attacker could use this to possibly gain administrative     privileges on systems where InifiniBand related kernel modules are loaded. (CVE-2016-4565)

    It was discovered that in some situations the Linux kernel did not handle propagated mounts correctly. A     local unprivileged attacker could use this to cause a denial of service (system crash). (CVE-2016-4581)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

  - CVE-2015-7515, CVE-2016-2184, CVE-2016-2185,     CVE-2016-2186, CVE-2016-2187, CVE-2016-3136,     CVE-2016-3137, CVE-2016-3138, CVE-2016-3140     Ralf Spenneberg of OpenSource Security reported that     various USB drivers do not sufficiently validate USB     descriptors. This allowed a physically present user with     a specially designed USB device to cause a denial of     service (crash).

  - CVE-2016-0821     Solar Designer noted that the list 'poisoning' feature,     intended to mitigate the effects of bugs in list     manipulation in the kernel, used poison values within     the range of virtual addresses that can be allocated by     user processes.

  - CVE-2016-1237     David Sinquin discovered that nfsd does not check     permissions when setting ACLs, allowing users to grant     themselves permissions to a file by setting the ACL.

  - CVE-2016-1583     Jann Horn of Google Project Zero reported that the     eCryptfs filesystem could be used together with the proc     filesystem to cause a kernel stack overflow. If the     ecryptfs-utils package is installed, local users could     exploit this, via the mount.ecryptfs_private program,     for denial of service (crash) or possibly for privilege     escalation.

  - CVE-2016-2117     Justin Yackoski of Cryptonite discovered that the     Atheros L2 ethernet driver incorrectly enables     scatter/gather I/O. A remote attacker could take     advantage of this flaw to obtain potentially sensitive     information from kernel memory.

  - CVE-2016-2143     Marcin Koscielnicki discovered that the fork     implementation in the Linux kernel on s390 platforms     mishandles the case of four page-table levels, which     allows local users to cause a denial of service (system     crash).

  - CVE-2016-3070     Jan Stancek of Red Hat discovered a local denial of     service vulnerability in AIO handling.

  - CVE-2016-3134     The Google Project Zero team found that the netfilter     subsystem does not sufficiently validate filter table     entries. A user with the CAP_NET_ADMIN capability could     use this for denial of service (crash) or possibly for     privilege escalation. Debian disables unprivileged user     namespaces by default, if locally enabled with the     kernel.unprivileged_userns_clone sysctl, this allows     privilege escalation.

  - CVE-2016-3156     Solar Designer discovered that the IPv4 implementation     in the Linux kernel did not perform the destruction of     inet device objects properly. An attacker in a guest OS     could use this to cause a denial of service (networking     outage) in the host OS.

  - CVE-2016-3157 / XSA-171     Andy Lutomirski discovered that the x86_64 (amd64) task     switching implementation did not correctly update the     I/O permission level when running as a Xen paravirtual     (PV) guest. In some configurations this would allow     local users to cause a denial of service (crash) or to     escalate their privileges within the guest.

  - CVE-2016-3672     Hector Marco and Ismael Ripoll noted that it was     possible to disable Address Space Layout Randomisation     (ASLR) for x86_32 (i386) programs by removing the stack     resource limit. This made it easier for local users to     exploit security flaws in programs that have the setuid     or setgid flag set.

  - CVE-2016-3951     It was discovered that the cdc_ncm driver would free     memory prematurely if certain errors occurred during its     initialisation. This allowed a physically present user     with a specially designed USB device to cause a denial     of service (crash) or possibly to escalate their     privileges.

  - CVE-2016-3955     Ignat Korchagin reported that the usbip subsystem did     not check the length of data received for a USB buffer.
    This allowed denial of service (crash) or privilege     escalation on a system configured as a usbip client, by     the usbip server or by an attacker able to impersonate     it over the network. A system configured as a usbip     server might be similarly vulnerable to physically     present users.

  - CVE-2016-3961 / XSA-174     Vitaly Kuznetsov of Red Hat discovered that Linux     allowed the use of hugetlbfs on x86 (i386 and amd64)     systems even when running as a Xen paravirtualised (PV)     guest, although Xen does not support huge pages. This     allowed users with access to /dev/hugepages to cause a     denial of service (crash) in the guest.

  - CVE-2016-4470     David Howells of Red Hat discovered that a local user     can trigger a flaw in the Linux kernel's handling of key     lookups in the keychain subsystem, leading to a denial     of service (crash) or possibly to privilege escalation.

  - CVE-2016-4482, CVE-2016-4485, CVE-2016-4486,     CVE-2016-4569, CVE-2016-4578, CVE-2016-4580,     CVE-2016-5243, CVE-2016-5244

    Kangjie Lu reported that the USB devio, llc, rtnetlink,     ALSA timer, x25, tipc, and rds facilities leaked     information from the kernel stack.

  - CVE-2016-4565     Jann Horn of Google Project Zero reported that various     components in the InfiniBand stack implemented unusual     semantics for the write() operation. On a system with     InfiniBand drivers loaded, local users could use this     for denial of service or privilege escalation.

  - CVE-2016-4581     Tycho Andersen discovered that in some situations the     Linux kernel did not handle propagated mounts correctly.
    A local user can take advantage of this flaw to cause a     denial of service (system crash).

  - CVE-2016-4805     Baozeng Ding discovered a use-after-free in the generic     PPP layer in the Linux kernel. A local user can take     advantage of this flaw to cause a denial of service     (system crash), or potentially escalate their     privileges.

  - CVE-2016-4913     Al Viro found that the ISO9660 filesystem implementation     did not correctly count the length of certain invalid     name entries. Reading a directory containing such name     entries would leak information from kernel memory. Users     permitted to mount disks or disk images could use this     to obtain sensitive information.

  - CVE-2016-4997 / CVE-2016-4998     Jesse Hertz and Tim Newsham discovered that missing     input sanitising in Netfilter socket handling may result     in denial of service. Debian disables unprivileged user     namespaces by default, if locally enabled with the     kernel.unprivileged_userns_clone sysctl, this also     allows privilege escalation.

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3001-1 advisory.

    Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables     scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from     kernel memory. (CVE-2016-2117)

    Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem     that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could     use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative     privileges. (CVE-2016-1583)

    Jason A. Donenfeld discovered multiple out-of-bounds reads in the OZMO USB over wifi device drivers in the     Linux kernel. A remote attacker could use this to cause a denial of service (system crash) or obtain     potentially sensitive information from kernel memory. (CVE-2015-4004)

    Ralf Spenneberg discovered that the Linux kernel's GTCO digitizer USB device driver did not properly     validate endpoint descriptors. An attacker with physical access could use this to cause a denial of     service (system crash). (CVE-2016-2187)

    Hector Marco and Ismael Ripoll discovered that the Linux kernel would improperly disable Address Space     Layout Randomization (ASLR) for x86 processes running in 32 bit mode if stack-consumption resource limits     were disabled. A local attacker could use this to make it easier to exploit an existing vulnerability in a     setuid/setgid program. (CVE-2016-3672)

    Andrey Konovalov discovered that the CDC Network Control Model USB driver in the Linux kernel did not     cancel work events queued if a later error occurred, resulting in a use-after-free. An attacker with     physical access could use this to cause a denial of service (system crash). (CVE-2016-3951)

    It was discovered that an out-of-bounds write could occur when handling incoming packets in the USB/IP     implementation in the Linux kernel. A remote attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2016-3955)

    Vitaly Kuznetsov discovered that the Linux kernel did not properly suppress hugetlbfs support in X86     paravirtualized guests. An attacker in the guest OS could cause a denial of service (guest system crash).
    (CVE-2016-3961)

    Kangjie Lu discovered an information leak in the ANSI/IEEE 802.2 LLC type 2 Support implementations in the     Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel     memory. (CVE-2016-4485)

    Kangjie Lu discovered an information leak in the routing netlink socket interface (rtnetlink)     implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive     information from kernel memory. (CVE-2016-4486)

    Jann Horn discovered that the InfiniBand interfaces within the Linux kernel could be coerced into     overwriting kernel memory. A local unprivileged attacker could use this to possibly gain administrative     privileges on systems where InifiniBand related kernel modules are loaded. (CVE-2016-4565)

    It was discovered that in some situations the Linux kernel did not handle propagated mounts correctly. A     local unprivileged attacker could use this to cause a denial of service (system crash). (CVE-2016-4581)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. (CVE-2016-2117)

Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-1583)

Jason A. Donenfeld discovered multiple out-of-bounds reads in the OZMO USB over wifi device drivers in the Linux kernel. A remote attacker could use this to cause a denial of service (system crash) or obtain potentially sensitive information from kernel memory. (CVE-2015-4004)

Ralf Spenneberg discovered that the Linux kernel's GTCO digitizer USB device driver did not properly validate endpoint descriptors. An attacker with physical access could use this to cause a denial of service (system crash). (CVE-2016-2187)

Hector Marco and Ismael Ripoll discovered that the Linux kernel would improperly disable Address Space Layout Randomization (ASLR) for x86 processes running in 32 bit mode if stack-consumption resource limits were disabled. A local attacker could use this to make it easier to exploit an existing vulnerability in a setuid/setgid program.
(CVE-2016-3672)

Andrey Konovalov discovered that the CDC Network Control Model USB driver in the Linux kernel did not cancel work events queued if a later error occurred, resulting in a use-after-free. An attacker with physical access could use this to cause a denial of service (system crash). (CVE-2016-3951)

It was discovered that an out-of-bounds write could occur when handling incoming packets in the USB/IP implementation in the Linux kernel. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-3955)

Vitaly Kuznetsov discovered that the Linux kernel did not properly suppress hugetlbfs support in X86 paravirtualized guests. An attacker in the guest OS could cause a denial of service (guest system crash).
(CVE-2016-3961)

Kangjie Lu discovered an information leak in the ANSI/IEEE 802.2 LLC type 2 Support implementations in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. (CVE-2016-4485)

Kangjie Lu discovered an information leak in the routing netlink socket interface (rtnetlink) implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. (CVE-2016-4486)

Jann Horn discovered that the InfiniBand interfaces within the Linux kernel could be coerced into overwriting kernel memory. A local unprivileged attacker could use this to possibly gain administrative privileges on systems where InifiniBand related kernel modules are loaded. (CVE-2016-4565)

It was discovered that in some situations the Linux kernel did not handle propagated mounts correctly. A local unprivileged attacker could use this to cause a denial of service (system crash).
(CVE-2016-4581).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Ben Hawkes 發現在處理 IPT_SO_SET_REPLACE 事件時，Linux netfilter 實作未正確執行驗證。
無權限的本機攻擊者可利用此問題，造成拒絕服務 (系統當機)，或可能以系統管理權限執行任意程式碼。(CVE-2016-3134)

Vitaly Kuznetsov 發現，Linux 核心未正確隱藏 X86 半虛擬化來賓中的 hugetlbfs 支援。來賓作業系統中的攻擊者可造成拒絕服務 (來賓系統當機)。
(CVE-2016-3961)

據發現，Linux 核心中的 keyring 實作並未確保在參照之前及發生錯誤情況之後初始化資料結構。本機攻擊者可利用此瑕疵引發拒絕服務 (系統當機)。(CVE-2016-4470)

Kangjie Lu 在 Linux 核心的 netlink 實作中發現一個資訊洩漏問題。本機攻擊者可利用此問題，取得核心記憶體中的敏感資訊。(CVE-2016-5243)。

請注意，Tenable Network Security 已直接從 Ubuntu 安全性公告擷取前置描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

4.4.8 更新含有多個跨樹狀結構的重要修正
---- 4.4.7 更新含有多個跨樹狀結構的重要修正

請注意，Tenable Network Security 已直接從 Fedora 安全性公告擷取前置描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

遠端 Ubuntu 16.04 LTS 主機上安裝的一個套件受到 USN-3006-1 公告中所提及的多個弱點影響。

    Justin Yackoski 發現 Linux 核心中的 Atheros L2 乙太網路驅動程式未正確啟用分散/收集 I/O。遠端攻擊者可利用此弱點從核心記憶體取得潛在的敏感資訊。 (CVE-2016-2117)

    Jann Horn 發現 eCryptfs 不當嘗試使用較低檔案系統的 mmap() 處置程式，而其並沒有實作處置程式，造成發生遞迴頁面錯誤。無權限的本機攻擊者可利用此錯誤，造成拒絕服務 (系統當機)，或可能以系統管理權限執行任意程式碼。(CVE-2016-1583)

    在 Linux 核心的 ext4 檔案系統中發現多個爭用情形。本機使用者可惡意利用此瑕疵，透過處理未同步打洞與頁面錯誤之後寫入與不同使用者檔案相關聯的頁面，造成拒絕服務 (磁碟損毀)。(CVE-2015-8839)

    Ralf Spenneberg 發現 Linux 核心的 GTCO 数字化器 USB 裝置驅動程式未正確驗證端點描述符號。具有實體存取權的攻擊者可利用此問題，造成拒絕服務 (系統當機)。(CVE-2016-2187)

    Vitaly Kuznetsov 發現 Linux 核心未正確隱藏 X86 半虛擬化來賓中的 hugetlbfs 支援。來賓作業系統中的攻擊者可造成拒絕服務 (來賓系統當機)。
    (CVE-2016-3961)

    Kangjie Lu 發現，Linux 核心中的 ANSI/IEEE 802.2 LLC 類型 2 支援實作有一個資訊洩漏問題。本機攻擊者可利用此問題，取得核心記憶體中潛在的敏感資訊。(CVE-2016-4485)

    Kangjie Lu 在 Linux 核心的路由 netlink 通訊端介面 (rtnetlink) 實作中發現一個資訊洩漏問題。本機攻擊者可利用此問題，取得核心記憶體中潛在的敏感資訊。(CVE-2016-4486)

    Jann Horn 發現，Linux 核心中的延伸 Berkeley 封包篩選器 (eBPF) 實作可在實體 ram 超過 32GB 且 RLIMIT_MEMLOCK 設定為無限的系統中溢位參照計數器。無權限的本機攻擊者可利用此問題造成釋放後使用情況，進而造成拒絕服務 (系統當機) 或可能取得系統管理員權限。(CVE-2016-4558)

    Jann Horn 發現，Linux 核心中的 InfiniBand 介面可能會遭到強制覆寫核心記憶體。無權限的本機攻擊者可能利用此問題，取得載入 InifiniBand 相關核心模組之系統上的管理權限。(CVE-2016-4565)

    據發現，在某些情況下，Linux 核心未正確處理傳播的掛載。無權限的本機攻擊者可利用此瑕疵引發拒絕服務 (系統當機)。(CVE-2016-4581)

Tenable 已直接從 Ubuntu 安全公告擷取前置描述區塊。

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

遠端 Ubuntu 14.04 LTS 主機上安裝的一個套件受到 USN-3001-1 公告中所提及的多個弱點影響。

  - 在 4.0.5 及之前的 Linux 核心中，OZWPAN 驅動程式在封包剖析期間依賴未受信任的長度欄位，其允許遠端攻擊者透過一個特製的封包從核心記憶體獲取敏感資訊或導致拒絕服務 (越界讀取和系統當機)。(CVE-2015-4004)

  - 在 4.6.3 之前的 Linux 核心中，fs/ecryptfs/kthread.c 的 ecryptfs_privileged_open 函式允許本機使用者透過涉及用於 /proc 路徑名稱之特製 mmap 呼叫的向量，取得權限或造成拒絕服務 (堆疊記憶體消耗)，進而導致遞迴索引標籤錯誤處理。(CVE-2016-1583)

  - 在 4.5.2 版及之前版本的 Linux 核心中，drivers/net/ethernet/atheros/atlx/atl2.c 的 atl2_probe 函式錯誤地啟用分散/收集 I/O，進而允許遠端攻擊者透過讀取封包資料，從核心記憶體取得敏感資訊。(CVE-2016-2117)

  - 在 4.5.2 版及之前版本的 Linux 核心中，在 Linux 核心的 drivers/input/tablet/gtco.c 中，gtco_probe 函式允許實體位置靠近的攻擊者透過 USB 裝置描述符號中特製的端點值，造成拒絕服務 (NULL 指標解除參照和系統當機)。(CVE-2016-2187)

  - 在 4.5.2 版及之前版本的 Linux 核心中，arch/x86/mm/mmap.c 中的 arch_pick_mmap_layout 函式未正確隨機化舊版基底位址，使本機使用者更容易突破 ADDR_NO_RANDOMIZE 旗標的預定限制，並透過停用堆疊消耗資源限制繞過 setuid 或 setgid 程式的 ASLR 保護機制。(CVE-2016-3672)

  - 在 4.5 版之前的 Linux 核心中，drivers/net/usb/cdc_ncm.c 中的重複釋放弱點允許實際位置靠近的攻擊者透過插入 USB 描述符號無效的 USB 裝置，造成拒絕服務 (系統當機) 或可能造成其他不明影響。(CVE-2016-3951)

  - 在 4.5.3 之前的 Linux 核心中，drivers/usb/usbip/usbip_common.c 的 usbip_recv_xbuff 函式允許遠端攻擊者透過 USB/IP 封包中的特製長度值，造成拒絕服務 (超出邊界寫入) 或可能造成其他不明影響。(CVE-2016-3955)

  - Xen 和 4.5.x 之前的 Linux 核心未正確隱藏 x86 PV 來賓中的 hugetlbfs 支援，其可允許本機 PV 來賓作業系統使用者藉著嘗試存取 hugetlbfs 對應區域而造成拒絕服務 (來賓作業系統當機)。(CVE-2016-3961)

  - 在 4.5.5 之前的 Linux 核心中，net/llc/af_llc.c 的 llc_cmsg_rcv 函式並未初始化特定資料結構，進而讓攻擊者透過讀取訊息，從核心堆疊記憶體取得敏感資訊。(CVE-2016-4485)

  - 在 4.5.5 之前的 Linux 核心中，net/core/rtnetlink.c 內的 rtnl_fill_link_ifmap 函式並未初始化特定資料結構，進而允許本機使用者透過讀取 Netlink 訊息，從核心堆疊記憶體取得敏感資訊。(CVE-2016-4486)

  在 4.5.3 之前的 Linux 核心中，InfiniBand (即 IB) 堆疊未正確依賴寫入系統呼叫，進而允許本機使用者透過 uAPI 介面造成拒絕服務 (核心記憶體寫入作業)，或可能造成其他不明影響。(CVE-2016-4565)

  在 4.5.4 之前的 Linux 核心中，fs/pnode.c 在涉及從屬掛載的特定情況下，並未正確遊走掛載傳播樹狀結構，其允許本機使用者透過一系列特製的掛載系統呼叫，造成拒絕服務 (NULL 指標解除參照和 OOPS)。(CVE-2016-4581)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

Justin Yackoski 發現，Linux 核心中的 Atheros L2 Ethernet 驅動程式未正確啟用分散/集中 I/O。遠端攻擊者可利用此問題，取得核心記憶體中潛在的敏感資訊。(CVE-2016-2117)

Jann Horn 發現 eCryptfs 不當嘗試使用較低檔案系統的 mmap() 處置程式，而其並沒有實作處置程式，造成發生遞迴頁面錯誤。無權限的本機攻擊者可利用此錯誤，造成拒絕服務 (系統當機)，或可能以系統管理權限執行任意程式碼。(CVE-2016-1583)

Jason A. Donenfeld 在 Linux 核心的 OZMO USB 中，使用 wifi 裝置驅動程式時發現多個超出邊界讀取。遠端攻擊者可利用此問題造成拒絕服務 (系統當機)，或從核心記憶體取得潛在的敏感資訊。(CVE-2015-4004)

Ralf Spenneberg 發現 Linux 核心的 GTCO 数字化器 USB 裝置驅動程式未正確驗證端點描述符號。具有實體存取權的攻擊者可利用此問題，造成拒絕服務 (系統當機)。(CVE-2016-2187)

Hector Marco 與 Ismael Ripoll 發現，如果停用了堆疊消耗資源限制，Linux 核心會針對在 32 位元模式下執行的 x86 處理程序不當停用位址空間配置隨機化 (ASLR)。本機攻擊者可利用此問題來更輕鬆地惡意利用 setuid/setgid 程式中的現有弱點。
(CVE-2016-3672)

Andrey Konovalov 發現，Linux 核心中的 CDC 網路控制模型 USB 驅動程式在稍後發生錯誤的情況下未取消排入佇列的工作事件，進而導致釋放後使用。具有實體存取權的攻擊者可利用此問題，造成拒絕服務 (系統當機)。(CVE-2016-3951)

據發現，當在 Linux 核心的 USB/IP 實作中處理傳入封包時，可發生超出邊界寫入。遠端攻擊者可利用此問題，造成拒絕服務 (系統當機)，或可能執行任意程式碼。(CVE-2016-3955)

Vitaly Kuznetsov 發現，Linux 核心未正確隱藏 X86 半虛擬化來賓中的 hugetlbfs 支援。來賓作業系統中的攻擊者可造成拒絕服務 (來賓系統當機)。
(CVE-2016-3961)

Kangjie Lu 發現，Linux 核心中的 ANSI/IEEE 802.2 LLC 類型 2 支援實作有一個資訊洩漏問題。本機攻擊者可利用此問題，取得核心記憶體中潛在的敏感資訊。(CVE-2016-4485)

Kangjie Lu 在 Linux 核心的路由 netlink 通訊端介面 (rtnetlink) 實作中發現一個資訊洩漏問題。本機攻擊者可利用此問題，取得核心記憶體中潛在的敏感資訊。(CVE-2016-4486)

Jann Horn 發現，Linux 核心中的 InfiniBand 介面可能會遭到強制覆寫核心記憶體。無權限的本機攻擊者可能利用此問題，取得載入 InifiniBand 相關核心模組之系統上的管理權限。(CVE-2016-4565)

據發現，在某些情況下，Linux 核心未正確處理傳播的掛載。無權限的本機攻擊者可利用此瑕疵引發拒絕服務 (系統當機)。
(CVE-2016-4581)。

請注意，Tenable Network Security 已直接從 Ubuntu 安全性公告擷取前置描述區塊。Tenable 已盡量在不造成其他問題的前提下，嘗試自動清理並將其格式化。

在 Linux 核心中發現數個弱點，這些弱點可能會導致權限提升、拒絕服務或資訊洩漏。

- CVE-2015-7515、CVE-2016-2184、CVE-2016-2185、CVE-2016-2186、CVE-2016-2187、CVE-2016-3136、CVE-2016-3137、CVE-2016-3138、CVE-2016-3140 OpenSource Security 的 Ralf Spenneberg 報告，多種 USB 驅動程式未充分驗證 USB 描述符號。這允許具有特別設計之 USB 裝置的實際存在使用者造成拒絕服務 (損毀)。

- CVE-2016-0821 Solar Designer 發現，清單「毒害」功能 (其用於減輕錯誤在核心清單操控中的影響) 使用了虛擬位址範圍內的毒害值，而其可由使用者處理程序進行配置。

- CVE-2016-1237 David Sinquin 發現，設定 ACL 時 nfsd 未檢查權限，進而允許使用者自行設定 ACL 而獲得檔案的權限。

- CVE-2016-1583 Google Project Zero 的 Jann Horn 報告，eCryptfs 檔案系統可與 proc 檔案系統一起使用，以造成核心堆疊溢位。如果已安裝 ecryptfs-utils 套件，則本機使用者可惡意利用此弱點，透過 mount.ecryptfs_private 程式，造成拒絕服務 (當機) 或可能提升權限。

- CVE-2016-2117 Cryptonite 的 Justin Yackoski of 發現，Atheros L2 乙太網路驅動程式錯誤地啟用了分散/收集 I/O。遠端攻擊者可利用此瑕疵，取得核心記憶體中潛在的敏感資訊。

- CVE-2016-2143 Marcin Koscielnicki 發現，s390 平台上 Linux 核心中的 fork 實作未正確處理四個分頁表層級的情況，其可允許本機使用者造成拒絕服務 (系統當機)。

- CVE-2016-3070 Red Hat 的 Jan Stancek 發現，AIO 處理過程有一個本機拒絕服務弱點。

- CVE-2016-3134 Google Project Zero 團隊發現，netfilter 子系統未充分驗證篩選器表格項目。具有 CAP_NET_ADMIN 能力的使用者可利用此問題造成拒絕服務 (損毀) 或可能提升權限。若在本機啟用 kernel.unprivileged_userns_clone sysctl，Debian 會預設停用無權限的使用者命名空間，而這會允許權限提升。

- CVE-2016-3156 Solar Designer 發現，Linux 核心中的 IPv4 實作未正確執行 inet 裝置物件的解構。來賓作業系統中的攻擊者可利用此弱點，在主機作業系統中造成拒絕服務 (網路中斷)。

- CVE-2016-3157 / XSA-171 Andy Lutomirski 發現，x86_64 (amd64) 工作切換實作以 Xen 半虛擬化 (PV) 來賓身分執行時，並未正確更新 I/O 權限層級。在某些組態中，這允許本機使用者造成拒絕服務 (損毀) 或在來賓中提升其權限。

- CVE-2016-3672 Hector Marco 和 Ismael Ripoll 發現，現在仍可透過移除堆疊資源限制的方式，停用 x86_32 (i386) 程式的位址空間配置隨機化 (ASLR)。這會使本機使用者更容易惡意利用已設定 setuid 或 setgid 旗標之程式中的安全性瑕疵。

- CVE-2016-3951 據發現，cdc_ncm 驅動程式初始化期間若發生特定錯誤，便會提前釋放記憶體。這允許具有特別設計之 USB 裝置的實際存在使用者造成拒絕服務 (損毀) 或可能提升其權限。

- CVE-2016-3955 Ignat Korchagin 報告，usbip 子系統未檢查 USB 緩衝區接收的資料長度。
 這允許 usbip 伺服器或能夠在網路上模擬 usbip 的攻擊者，對設定為 usbip 用戶端的系統造成拒絕服務 (損毀) 或權限提升。設定為 usbip 伺服器的系統同樣可能受到實際存在的使用者影響。

- CVE-2016-3961 / XSA-174 Red Hat 的 Vitaly Kuznetsov 發現，儘管 Xen 不支援大型頁面，但當 Linux 以 Xen 半虛擬化 (PV) 來賓身分執行時，仍允許在 x86 (i386 和 amd64) 系統上使用 hugetlbfs。這允許具有 /dev/hugepages 存取權限的使用者在來賓中造成拒絕服務。

- CVE-2016-4470 Red Hat 的 David Howells 發現，本機使用者可在 Linux 核心處理 keychain 子系統中的金鑰查閱時觸發一個瑕疵，進而導致拒絕服務 (當機) 或可能提升權限。

- CVE-2016-4482、CVE-2016-4485、CVE-2016-4486、CVE-2016-4569、CVE-2016-4578、CVE-2016-4580、CVE-2016-5243、CVE-2016-5244

Kangjie Lu 報告 USB devio、llc、rtnetlink、ALSA timer、x25、tipc 與 rds 設備從核心堆疊中洩漏資訊。

- CVE-2016-4565 Google Project Zero 的 Jann Horn 報告，InfiniBand 堆疊中的多種元件會針對 write() 作業實作異常語意。在已載入 InfiniBand 驅動程式的系統上，本機使用者可利用此問題造成拒絕服務或權限提升。

- CVE-2016-4581 Tycho Andersen 發現，在某些情況下，Linux 核心未正確處理傳播的掛載。
 本機使用者可利用此瑕疵造成拒絕服務 (系統當機)。

- CVE-2016-4805 Baozeng Ding 在 Linux 核心的泛型 PPP 層中發現一個釋放後使用問題。本機使用者可利用此瑕疵造成拒絕服務 (系統當機)，或可能提升其權限。

- CVE-2016-4913 Al Viro 發現，ISO9660 檔案系統實作未正確計算特定無效名稱項目的長度。讀取包含此類名稱項目的目錄會從核心記憶體洩漏資訊。允許掛載磁碟或磁碟映像的使用者可利用此問題取得敏感資訊。

- CVE-2016-4997 / CVE-2016-4998 Jesse Hertz 和 Tim Newsham 發現，Netfilter 通訊端處理過程遺漏輸入清理可能導致拒絕服務。若在本機啟用 kernel.unprivileged_userns_clone sysctl，Debian 會預設停用無權限的使用者命名空間，而這也會允許權限提升。

ID	名稱	產品	系列	已發布	已更新	嚴重性
91566	Ubuntu 15.10：linux-raspi2 漏洞 (USN-3004-1)	Nessus	Ubuntu Local Security Checks	2016/6/10	2023/1/12	critical
92860	Ubuntu 12.04 LTS : linux vulnerabilities (USN-3049-1)	Nessus	Ubuntu Local Security Checks	2016/8/11	2023/1/12	high
90952	Fedora 22 : kernel-4.4.8-200.fc22 (2016-373c063e79)	Nessus	Fedora Local Security Checks	2016/5/9	2021/1/11	critical
91568	Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3006-1)	Nessus	Ubuntu Local Security Checks	2016/6/10	2024/8/27	high
91886	Debian DSA-3607-1 : linux - security update	Nessus	Debian Local Security Checks	2016/6/29	2021/1/11	critical
91563	Ubuntu 14.04 LTS : Linux kernel (Vivid HWE) vulnerabilities (USN-3001-1)	Nessus	Ubuntu Local Security Checks	2016/6/10	2024/8/27	critical
91565	Ubuntu 15.10 : linux vulnerabilities (USN-3003-1)	Nessus	Ubuntu Local Security Checks	2016/6/10	2023/1/12	critical
91566	Ubuntu 15.10 : linux-raspi2 vulnerabilities (USN-3004-1)	Nessus	Ubuntu Local Security Checks	2016/6/10	2023/1/12	critical
92860	Ubuntu 12.04 LTS : linux 弱點 (USN-3049-1)	Nessus	Ubuntu Local Security Checks	2016/8/11	2023/1/12	high
90952	Fedora 22︰kernel-4.4.8-200.fc22 (2016-373c063e79)	Nessus	Fedora Local Security Checks	2016/5/9	2021/1/11	critical
91568	Ubuntu 16.04 LTS : Linux 核心弱點 (USN-3006-1)	Nessus	Ubuntu Local Security Checks	2016/6/10	2024/8/27	high
91563	Ubuntu 14.04 LTS：Linux 核心 (Vivid HWE) 弱點 (USN-3001-1)	Nessus	Ubuntu Local Security Checks	2016/6/10	2024/8/27	critical
91565	Ubuntu 15.10：linux 弱點 (USN-3003-1)	Nessus	Ubuntu Local Security Checks	2016/6/10	2023/1/12	critical
91566	Ubuntu 15.10：linux-raspi2 弱點 (USN-3004-1)	Nessus	Ubuntu Local Security Checks	2016/6/10	2023/1/12	critical
91886	Debian DSA-3607-1：linux - 安全性更新	Nessus	Debian Local Security Checks	2016/6/29	2021/1/11	critical

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