远程 Oracle Linux 7 主机上安装的程序包受到 ELSA-2018-3083 公告中提及的多个漏洞的影响。

  在 4.5.5 之前的 Linux 内核中，fs/isofs/rock.c 的 get_rock_ridge_filename 函数不当处理包含 \0 字符的 NM（即备用名称）条目，进而允许本地用户通过特别构建的 isofs 文件系统，从内核内存获取敏感信息或可能造成其他不明影响。
    (CVE-2016-4913)

  - 在低于 4.10.15 的 Linux 内核版本中，fs/timerfd.c 中存在争用条件，本地用户可利用此漏洞，通过同步文件描述符操作（使用不当的 might_cancel 队列），获取权限，或造成拒绝服务（列表损坏或释放后使用）。(CVE-2017-10661)

  - Linux 内核 ALSA 子系统的 snd_pcm_info 函数中存在释放后使用漏洞，攻击者可利用此漏洞，通过不明向量，获取权限。(CVE-2017-0861)

  - 在 Linux 内核 4.0 中，fs/aio.c 的 aio_setup_single_vector 函数中存在整数溢出，本地用户可利用此漏洞，通过大 AIO iovec，造成拒绝服务，或可能造成其他不明影响。注意：
    存在此漏洞的原因是 CVE-2012-6701 回归 (CVE-2015-8830)。

  - 在版本低于 4.15.8、4.14.25、4.9.87、4.4.121、4.1.51 和 3.2.102 的 Linux 内核中，
    处理 SCTP 数据包长度时，_sctp_make_chunk() 函数 (net/sctp/sm_make_chunk.c) 中存在错误，攻击者可利用此漏洞，造成内核崩溃。(CVE-2018-5803)

  - net/dccp/output.c 的 dccp_write_xmit() 函数中存在空指针取消引用，本地用户可利用此漏洞，通过大量构建的特定系统调用，造成拒绝服务，版本低于 4.16-rc7 的 Linux 内核容易受到此漏洞的影响。(CVE-2018-1130)

  - 在 Linux 内核 3.4 至 4.15（包括）版本中，drivers/gpu/drm/udl/udl_fb.c 中的 udl_fb_mmap 函数中存在整数溢出漏洞，具有 udldrmfb 驱动程序访问权限的本地用户可利用此漏洞，获取内核物理页的完整读写权限，在内核空间中执行代码。(CVE-2018-8781)

  - 在低于 4.14.8 的 Linux 内核版本中，kernel/time/posix-timers.c 中的 timer_create 系统调用实现未正确验证 sigevent->sigev_notify 字段，导致 show_timer 函数（在读取 /proc/$PID/timers 时调用）发生越界访问。用户空间应用程序可利用此漏洞读取任意内核内存（在使用 CONFIG_POSIX_TIMERS 和 CONFIG_CHECKPOINT_RESTORE 构建的内核上）。
    (CVE-2017-18344)

  - Linux 内核 3.9+ 版容易受到拒绝服务攻击，这是针对 IP 片段重组的特别修改的数据包速率较低所致。攻击者可能会通过发送特别构建的 IP 片段造成拒绝服务的情况。几年来，IP 碎片中发现并修复了多个漏洞。攻击者可在 Linux 内核中利用当前漏洞 (CVE-2018-5391)，这是 IP 片段重组队列大小增加所致。(CVE-2018-5391)

  - 在目录是特定群组的 SGID 且可由非此群组成员的用户写入时，本地用户可利用 Linux 内核 3.16 及之前版本的 fs/inode.c 中的 inode_init_owner 函数，创建具有非预期群组所有权的文件。此时非成员可触发创建普通文件，此文件的群组所有权是该群组。预期行为是非成员可触发创建目录（而非普通文件），此目录的群组所有权是该群组。非成员可通过将普通文件设置为可执行文件和 SGID 来升级权限。(CVE-2018-13405)

  - 在低于 4.14.8 的 Linux 内核版本中，Salsa20 加密算法未正确处理零长度输入，本地攻击者可利用此漏洞，通过执行使用 blkcipher_walk API 的构建系统调用序列，使用 AF_ALG 式 skcipher 接口 (CONFIG_CRYPTO_USER_API_SKCIPHER) 造成拒绝服务（未初始化内存释放和内核崩溃），或造成其他不明影响。Salsa20 的通用实现 (crypto/salsa20_generic.c) 和 x86 实现 (arch/x86/crypto/salsa20_glue.c) 都容易受到影响。(CVE-2017-17805)

  - 在低于 4.14.4 的 Linux 内核版本中，本地用户可利用 mm/madvise.c 中的 madvise_willneed 函数，通过触发使用 MADVISE_WILLNEED 进行 DAX 映射，造成拒绝服务（无限循环）。
    (CVE-2017-18208)

  - 在 Linux 内核 4.15.9 及之前的版本中，串行连接 SCSI (SAS) 实现错误地处理了 libsas 内的互斥，使本地用户能够通过触发特定的错误处理代码来造成拒绝服务。(CVE-2017-18232)

  - 在 Linux 内核 4.15.15 及之前版本中，fs/ext4/inode.c 中的 ext4_iget 函数未正确处理 i_links_count 为零时的根目录情况，攻击者可利用此漏洞，通过构建的 ext4 映像，造成拒绝服务（ext4_process_freed_data 空指针取消引用和 OOPS）。(CVE-2018-1092)

  - 在 wmi_set_ie() 函数中，长度验证码未正确处理无符号整数溢出。因此，在 CAF 中发布的使用 Linux 内核的所有 Android 版本（Android for MSM、Firefox OS for MSM、QRD Android）中，较大“ie_len”参数值可造成缓冲区溢出。
    (CVE-2018-5848)

  - 在 Linux 内核 4.15.7 及之前版本中，drivers/scsi/libsas/sas_expander.c 的 sas_smp_get_phy_events 函数中存在内存泄漏，本地用户可利用此漏洞，通过对 /sys/class/sas_phy 目录中的文件多次读取访问，造成拒绝服务（内存消耗），/sys/class/sas_phy/phy-1: 0: 12/invalid_dword_count 文件即为一例。(CVE-2018-7757)

  - 本地用户可利用 Linux 内核 4.16.3 及其之前版本的 fs/xfs/libxfs/xfs_inode_buf.c 中的 xfs_dinode_verify 函数，通过构建的 xfs 图像造成拒绝服务（xfs_ilock_attr_map_shared 无效指针取消引用）。(CVE-2018-10322)

  - 在 Linux 内核的 ext4 文件系统中发现缺陷。本地用户可通过安装和操作构建的 ext4 文件系统图像，造成越界写入和拒绝服务，或可能造成其他不明影响。(CVE-2018-10878)

  - 在 Linux 内核 4.15.15 及之前版本中，fs/ext4/super.c 中的 ext4_fill_super 函数始终未初始化 crc32c 校验和驱动程序，攻击者可利用此漏洞，通过构建的 ext4 图像，造成拒绝服务（ext4_xattr_inode_hash 空指针取消引用和系统崩溃）。
    (CVE-2018-1094)

  - 在版本高于 4.8 的 Linux 内核 vhost 中，vhost/vhost.c: vhost_new_msg() 函数未正确初始化虚拟客户机和主机操作系统之间所传递消息的内存。在 /dev/vhost-net 设备文件中读取数据时，本地特权用户可利用此漏洞，读取某些内核内存内容。(CVE-2018-1118)

  - 发现一个影响版本低于 4.17 的 Linux 内核的缺陷。通过 mmap()ing 将 FUSE 支持文件映射至包含命令行参数（或环境字符串）的进程内存，攻击者可无限期地（拒绝服务）或在某些受控时间内（作为其他攻击的同步原语）阻止来自 psutils 或 procps（如 ps、w）的实用工具或对 /proc//cmdline（或 /proc//environ）文件进行 read() 调用的任何其他程序。(CVE-2018-1120)

  - 在 Linux 内核 4.14.13 及之前版本中，drivers/block/loop.c 未正确处理 lo_release 序列化，攻击者可利用此漏洞，造成拒绝服务（__lock_acquire 释放后使用），或可能造成其他不明影响。(CVE-2018-5344)

  - 在 Linux 内核 4.15.7 及之前版本中，本地用户可利用 mm/hugetlb.c 中的 resv_map_release 函数，通过进行 mmap 系统调用并对 remap_file_pages 系统调用使用较大 pgoff 参数的构建应用程序，造成拒绝服务（错误）。(CVE-2018-7740)

  - 在 Linux 内核的 ext4 文件系统中发现缺陷。本地用户可利用 ext4_xattr_set_entry 函数，通过重命名构建 ext4 文件系统图像中的文件，造成释放后使用，以及拒绝服务或其他不明影响。(CVE-2018-10879)

  - 在 Linux 内核的 ext4 文件系统中发现缺陷。本地用户可利用 ext4_get_group_info 函数，通过安装和操作构建的 ext4 文件系统镜像，造成越界访问、拒绝服务和系统崩溃。(CVE-2018-10881)

  - 在 Linux 内核的 ext4 文件系统中发现缺陷。本地用户可利用 jbd2_journal_dirty_metadata()，通过安装和操作构建的 ext4 文件系统映像，造成越界写入、拒绝服务和系统崩溃。(CVE-2018-10883)

  - 已发现原始 midi 内核驱动程序未防御并发访问，导致 rawmidi.c 文件内 snd_rawmidi_ioctl() 处理程序中的 snd_rawmidi_input_params() 和 snd_rawmidi_output_status() 中出现双重 realloc（双重释放）。本地恶意攻击者可能利用此问题，提升权限。(CVE-2018-10902)

  - 在低于 4.16.6 的 Linux 内核版本中，本地攻击者可利用 drivers/cdrom/cdrom.c 中的 cdrom_ioctl_media_changed 函数，在 CDROM 驱动程序 CDROM_MEDIA_CHANGED ioctl 中通过不正确的边界检查，读取内核内存。(CVE-2018-10940)

  - 在 Linux 内核 v4.8（可能低于 v4.8）及更高版本中，bnx2x 网卡驱动程序中存在未充分验证输入漏洞，可导致拒绝服务： 网卡固件断言造成网卡脱机。攻击者必须将特别构建的巨大数据包传递至 bnx2x 网卡，才可利用此攻击。为此，需使用不受信任的客户机 VM。
    (CVE-2018-1000026)

请注意，Nessus 尚未测试此问题，而是只依赖于应用程序自我报告的版本号。

An update of the linux package has been released.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4509 advisory.

    - KVM: X86: Fix scan ioapic use-before-initialization (Wanpeng Li)  [Orabug: 29026132]  {CVE-2018-19407}
    - ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in card.c (Hui Peng)  [Orabug:
    29042979]  {CVE-2018-19824}
    - xfs: enhance dinode verifier (Eric Sandeen)  [Orabug: 28997653]  {CVE-2018-10322}
    - xfs: move inode fork verifiers to xfs_dinode_verify (Darrick J. Wong)  [Orabug: 28997653]     {CVE-2018-10322}
    - net: phy: mdio-bcm-unimac: fix potential NULL dereference in unimac_mdio_probe() (Wei Yongjun)  [Orabug:
    27677743]  {CVE-2018-8043}
    - wil6210: missing length check in wmi_set_ie (Lior David)  [Orabug: 28951264]  {CVE-2018-5848}
    - floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl (Andy Whitcroft)   {CVE-2018-7755}     {CVE-2018-7755}

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

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

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:2948 advisory.

    The kernel-alt packages provide the Linux kernel version 4.x.

    Security Fix(es):

    * An industry-wide issue was found in the way many modern microprocessor designs have implemented     speculative execution of Load & Store instructions (a commonly used performance optimization). It relies     on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact     that memory read from address to which a recent memory write has occurred may see an older value and     subsequently cause an update into the microprocessor's data cache even for speculatively executed     instructions that never actually commit (retire). As a result, an unprivileged attacker could use this     flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639, aarch64)

    * A flaw named SegmentSmack was found in the way the Linux kernel handled specially crafted TCP packets. A     remote attacker could use this flaw to trigger time and calculation expensive calls to     tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() functions by sending specially modified packets within     ongoing TCP sessions which could lead to a CPU saturation and hence a denial of service on the system.
    Maintaining the denial of service condition requires continuous two-way TCP sessions to a reachable open     port, thus the attacks cannot be performed using spoofed IP addresses. (CVE-2018-5390)

    * A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4     and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment     reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a     denial of service on the system. (CVE-2018-5391)

    Space precludes documenting all of the security fixes in this advisory. See the descriptions of the     remaining security fixes in the related Knowledge Article:

    https://access.redhat.com/articles/3658021

    For more details about the security issue(s), including the impact, a CVSS score, and other related     information, refer to the CVE page(s) listed in the References section.

    Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project     Zero) for reporting CVE-2018-3639; Juha-Matti Tilli (Aalto University - Department of Communications and     Networking and Nokia Bell Labs) for reporting CVE-2018-5390 and CVE-2018-5391; Qualys Research Labs for     reporting CVE-2018-1120; David Rientjes (Google) for reporting CVE-2018-1000200; and Wen Xu for reporting     CVE-2018-1092, CVE-2018-1094, and CVE-2018-1095. The CVE-2018-14619 issue was discovered by Florian Weimer     (Red Hat) and Ondrej Mosnacek (Red Hat).

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391)

* kernel: out-of-bounds access in the show_timer function in kernel/time/ posix-timers.c (CVE-2017-18344)

* kernel: Integer overflow in udl_fb_mmap() can allow attackers to execute code in kernel space (CVE-2018-8781)

* kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902)

* kernel: Missing check in inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405)

* kernel: AIO write triggers integer overflow in some protocols (CVE-2015-8830)

* kernel: Use-after-free in snd_pcm_info function in ALSA subsystem potentially leads to privilege escalation (CVE-2017-0861)

* kernel: Handling of might_cancel queueing is not properly pretected against race (CVE-2017-10661)

* kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers to cause denial of service (CVE-2017-17805)

* kernel: Inifinite loop vulnerability in madvise_willneed() function allows local denial of service (CVE-2017-18208)

* kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service (CVE-2018-1120)

* kernel: a NULL pointer dereference in dccp_write_xmit() leads to a system crash (CVE-2018-1130)

* kernel: drivers/block/loop.c mishandles lo_release serialization allowing denial of service (CVE-2018-5344)

* kernel: Missing length check of payload in _sctp_make_chunk() function allows denial of service (CVE-2018-5803)

* kernel: buffer overflow in drivers/net/wireless/ath/wil6210/ wmi.c:wmi_set_ie() may lead to memory corruption (CVE-2018-5848)

* kernel: out-of-bound write in ext4_init_block_bitmap function with a crafted ext4 image (CVE-2018-10878)

* kernel: Improper validation in bnx2x network card driver can allow for denial of service attacks via crafted packet (CVE-2018-1000026)

* kernel: Information leak when handling NM entries containing NUL (CVE-2016-4913)

* kernel: Mishandling mutex within libsas allowing local Denial of Service (CVE-2017-18232)

* kernel: NULL pointer dereference in ext4_process_freed_data() when mounting crafted ext4 image (CVE-2018-1092)

* kernel: NULL pointer dereference in ext4_xattr_inode_hash() causes crash with crafted ext4 image (CVE-2018-1094)

* kernel: vhost: Information disclosure in vhost/vhost.c:vhost_new_msg() (CVE-2018-1118)

* kernel: Denial of service in resv_map_release function in mm/hugetlb.c (CVE-2018-7740)

* kernel: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/ libsas/sas_expander.c (CVE-2018-7757)

* kernel: Invalid pointer dereference in xfs_ilock_attr_map_shared() when mounting crafted xfs image allowing denial of service (CVE-2018-10322)

* kernel: use-after-free detected in ext4_xattr_set_entry with a crafted file (CVE-2018-10879)

* kernel: out-of-bound access in ext4_get_group_info() when mounting and operating a crafted ext4 image (CVE-2018-10881)

* kernel: stack-out-of-bounds write in jbd2_journal_dirty_metadata function (CVE-2018-10883)

* kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c (CVE-2018-10940)

Red Hat would like to thank Juha-Matti Tilli (Aalto University - Department of Communications and Networking and Nokia Bell Labs) for reporting CVE-2018-5391; Trend Micro Zero Day Initiative for reporting CVE-2018-10902; Qualys Research Labs for reporting CVE-2018-1120;
Evgenii Shatokhin (Virtuozzo Team) for reporting CVE-2018-1130; and Wen Xu for reporting CVE-2018-1092 and CVE-2018-1094.

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - The IPv6 SCTP implementation in net/sctp/ipv6.c in the     Linux kernel through 3.11.1 uses data structures and     function calls that do not trigger an intended     configuration of IPsec encryption, which allows remote     attackers to obtain sensitive information by sniffing     the network.(CVE-2013-4350i1/4%0

  - The sg_ioctl function in drivers/scsi/sg.c in the Linux     kernel allows local users to cause a denial of service     (stack-based buffer overflow) or possibly have     unspecified other impacts via a large command size in     an SG_NEXT_CMD_LEN ioctl call, leading to out-of-bounds     write access in the sg_write function.(CVE-2017-7187i1/4%0

  - An issue was discovered in can_can_gw_rcv in     net/can/gw.c in the Linux kernel through 4.19.13. The     CAN frame modification rules allow bitwise logical     operations that can be also applied to the can_dlc     field. Because of a missing check, the CAN drivers may     write arbitrary content beyond the data registers in     the CAN controller's I/O memory when processing can-gw     manipulated outgoing frames. This is related to     cgw_csum_xor_rel. An unprivileged user can trigger a     system crash (general protection     fault).(CVE-2019-3701i1/4%0

  - net/rds/sysctl.c in the Linux kernel before 3.19 uses     an incorrect data type in a sysctl table, which allows     local users to obtain potentially sensitive information     from kernel memory or possibly have unspecified other     impact by accessing a sysctl entry.(CVE-2015-2042i1/4%0

  - The inet_csk_clone_lock function in     net/ipv4/inet_connection_sock.c in the Linux kernel     allows attackers to cause a denial of service (double     free) or possibly have unspecified other impact by     leveraging use of the accept system call. An     unprivileged local user could use this flaw to induce     kernel memory corruption on the system, leading to a     crash. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out, although we     believe it is unlikely.(CVE-2017-8890i1/4%0

  - The overlayfs implementation in the linux (aka Linux     kernel) package before 3.19.0-21.21 in Ubuntu through     15.04 does not properly check permissions for file     creation in the upper filesystem directory, which     allows local users to obtain root access by leveraging     a configuration in which overlayfs is permitted in an     arbitrary mount namespace.(CVE-2015-1328i1/4%0

  - The xfs_dinode_verify function in     fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel     through 4.16.3 allows local users to cause a denial of     service (xfs_ilock_attr_map_shared invalid pointer     dereference) via a crafted xfs image.(CVE-2018-10322i1/4%0

  - In the flush_tmregs_to_thread function in     arch/powerpc/kernel/ptrace.c in the Linux kernel before     4.13.5, a guest kernel crash can be triggered from     unprivileged userspace during a core dump on a POWER     host due to a missing processor feature check and an     erroneous use of transactional memory (TM) instructions     in the core dump path, leading to a denial of     service.(CVE-2018-1091i1/4%0

  - ** DISPUTED ** drivers/scsi/libsas/sas_scsi_host.c in     the Linux kernel before 4.16 allows local users to     cause a denial of service (ata qc leak) by triggering     certain failure conditions. NOTE: a third party     disputes the relevance of this report because the     failure can only occur for physically proximate     attackers who unplug SAS Host Bus Adapter     cables.(CVE-2018-10021i1/4%0

  - A use-after-free flaw was discovered in the Linux     kernel's tty subsystem, which allows for the disclosure     of uncontrolled memory location and possible kernel     panic. The information leak is caused by a race     condition when attempting to set and read the tty line     discipline. A local attacker could use the TIOCSETD     (via tty_set_ldisc ) to switch to a new line discipline     a concurrent call to a TIOCGETD ioctl performing a read     on a given tty could then access previously allocated     memory. Up to 4 bytes could be leaked when querying the     line discipline or the kernel could panic with a     NULL-pointer dereference.(CVE-2016-0723i1/4%0

  - An out-of-bounds read flaw was found in the way the     Logitech Unifying receiver driver handled HID reports     with an invalid device_index value. An attacker with     physical access to the system could use this flaw to     crash the system or, potentially, escalate their     privileges on the system.(CVE-2014-3182i1/4%0

  - arch/x86/kvm/emulate.c in the Linux kernel through     4.9.3 allows local users to obtain sensitive     information from kernel memory or cause a denial of     service (use-after-free) via a crafted application that     leverages instruction emulation for fxrstor, fxsave,     sgdt, and sidt.(CVE-2017-2584i1/4%0

  - A flaw was found in the way the Linux kernel handled     IRET faults during the processing of NMIs. An     unprivileged, local user could use this flaw to crash     the system or, potentially (although highly unlikely),     escalate their privileges on the     system.(CVE-2015-5157i1/4%0

  - drivers/media/media-device.c in the Linux kernel before     3.11, as used in Android before 2016-08-05 on Nexus 5     and 7 (2013) devices, does not properly initialize     certain data structures, which allows local users to     obtain sensitive information via a crafted application,     aka Android internal bug 28750150 and Qualcomm internal     bug CR570757, a different vulnerability than     CVE-2014-1739.(CVE-2014-9895i1/4%0

  - A use-after-free vulnerability in sys_ioprio_get() was     found due to get_task_ioprio() accessing the     task-i1/4zio_context without holding the task lock and     could potentially race with exit_io_context(), leading     to a use-after-free.(CVE-2016-7911i1/4%0

  - A flaw was found in the Linux kernel which is related     to the user namespace lazily unmounting file systems.
    The fs_pin struct has two members (m_list and s_list)     which are usually initialized on use in the     pin_insert_group function. However, these members might     go unmodified in this case, the system panics when it     attempts to destroy or free them. This flaw could be     used to launch a denial-of-service     attack.(CVE-2015-4178i1/4%0

  - A flaw was found in the Linux kernel's implementation     of raw_sendmsg allowing a local attacker to panic the     kernel or possibly leak kernel addresses. A local     attacker, with the privilege of creating raw sockets,     can abuse a possible race condition when setting the     socket option to allow the kernel to automatically     create ip header values and thus potentially escalate     their privileges.(CVE-2017-17712i1/4%0

  - A flaw was discovered in the F2FS filesystem code in     fs/f2fs/super.c in the Linux kernel. A denial of     service, due to an out-of-bounds memory access, can     occur upon encountering an abnormal bitmap size when     mounting a crafted f2fs image.(CVE-2018-13096i1/4%0

  - A NULL pointer dereference flaw was found in the way     the Linux kernel's madvise MADV_WILLNEED functionality     handled page table locking. A local, unprivileged user     could use this flaw to crash the     system.(CVE-2014-8173i1/4%0

  - An out-of-bounds heap memory access leading to a Denial     of Service, heap disclosure, or further impact was     found in setsockopt(). The function call is normally     restricted to root, however some processes with     cap_sys_admin may also be able to trigger this flaw in     privileged container environments.(CVE-2016-4998i1/4%0

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

ID	名稱	產品	系列	已發布	已更新	嚴重性
118770	Oracle Linux 7：内核 (ELSA-2018-3083)	Nessus	Oracle Linux Local Security Checks	2018/11/7	2024/10/24	high
121868	Photon OS 1.0: Linux PHSA-2018-1.0-0169	Nessus	PhotonOS Local Security Checks	2019/2/7	2024/6/21	medium
121201	Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2019-4509)	Nessus	Oracle Linux Local Security Checks	2019/1/16	2024/11/1	high
118513	RHEL 7 : kernel-alt (RHSA-2018:2948)	Nessus	Red Hat Local Security Checks	2018/10/31	2025/3/16	high
118990	CentOS 7 : kernel (CESA-2018:3083)	Nessus	CentOS Local Security Checks	2018/11/16	2022/5/27	high
124972	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1519)	Nessus	Huawei Local Security Checks	2019/5/14	2022/5/20	high

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