The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-2168 advisory.

    [4.18.0-305.3.1_4.OL8]
    - Update Oracle Linux certificates (Kevin Lyons)
    - Disable signing for aarch64 (Ilya Okomin)
    - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem)     [Orabug: 29539237]
    - Update x509.genkey [Orabug: 24817676]
    - Conflict with shim-ia32 and shim-x64 <= 15-11.0.5

    [4.18.0-305.3.1_4]
    - Revert 'uio: use request_threaded_irq instead' (Vitaly Kuznetsov) [1952952 1946644]
    - drm/ast: Set format registers in primary plane's update (Lyude Paul) [1952900 1923857]
    - net/sched: act_ct: clear post_ct if doing ct_clear (Marcelo Ricardo Leitner) [1956458 1941889]
    - md/raid1: properly indicate failure when ending a failed write request (Nigel Croxon) [1955188 1954588]
    - nitro_enclaves: Fix stale file descriptors on failed usercopy (Vitaly Kuznetsov) [1956379 1953717]

    [4.18.0-305.2.1_4]
    - net/mlx5e: Allow to match on MPLS parameters only for MPLS over UDP (Alaa Hleihel) [1952061 1936742]
    - net/mlx5e: Reject tc rules which redirect from a VF to itself (Alaa Hleihel) [1952065 1932839]
    - net/mlx5: CT: Add support for matching on ct_state inv and rel flags (Alaa Hleihel) [1952062 1942681]
    - KVM: VMX: Don't use vcpu->run->internal.ndata as an array index (Jon Maloy) [1954221 1954219]
    - tools/power turbostat: Revert '[tools] tools/power turbostat: Enable accumulate RAPL display' (Prarit     Bhargava) [1952987 1944699]

    [4.18.0-305.1.1_4]
    - ALSA: usb-audio: fix NULL ptr dereference in usb_audio_probe (Jaroslav Kysela) [1954545 1870724]
    - ALSA: usb-audio: fix use after free in usb_audio_disconnect (Jaroslav Kysela) [1954545 1870724]
    - ALSA: usb-audio: Disable USB autosuspend properly in setup_disable_autosuspend() (Jaroslav Kysela)     [1954545 1870724]
    - selinux: fix deadlock in security_set_bools() (Ondrej Mosnacek) [1945123 1924230]
    - geneve: do not modify the shared tunnel info when PMTU triggers an ICMP reply (Antoine Tenart) [1944667     1941753]
    - vxlan: do not modify the shared tunnel info when PMTU triggers an ICMP reply (Antoine Tenart) [1944667     1941753]
    - redhat: switch to zstream (Jan Stancek)

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 MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2021-2223:13 advisory.

    * kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32     GB from vcpu->run (CVE-2021-3501)
      * kernel: nitro_enclaves stale file descriptors on failed usercopy (CVE-2021-3543)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4983-1 advisory.

    Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly enforce limits     for pointer operations. A local attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2021-33200)

    Piotr Krysiuk and Benedict Schlueter discovered that the eBPF implementation in the Linux kernel performed     out of bounds speculation on pointer arithmetic. A local attacker could use this to expose sensitive     information. (CVE-2021-29155)

    Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly prevent     speculative loads in certain situations. A local attacker could use this to expose sensitive information     (kernel memory). (CVE-2021-31829)

    Reiji Watanabe discovered that the KVM VMX implementation in the Linux kernel did not properly prevent     user space from tampering with an array index value, leading to a potential out-of-bounds write. A local     attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2021-3501)

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.

The remote NewStart CGSL host, running version MAIN 6.02, has kernel packages installed that are affected by multiple vulnerabilities:

  - A flaw was found in the Linux kernel's futex implementation. This flaw allows a local attacker to corrupt     system memory or escalate their privileges when creating a futex on a filesystem that is about to be     unmounted. The highest threat from this vulnerability is to confidentiality, integrity, as well as system     availability. (CVE-2020-14381)

  - The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive     information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to     drivers/char/random.c and kernel/time/timer.c. (CVE-2020-16166)

  - In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could     overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in     ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.
    (CVE-2020-25211)

  - A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption     and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause     the system to crash or cause a denial of service. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability. (CVE-2020-25643)

  - In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking     in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal     in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker     has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are     proxied via an attacker-selected backstore. (CVE-2020-28374)

  - A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13.
    drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b.
    (CVE-2020-29661)

  - A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c.
    This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name     space (CVE-2021-22555)

  - An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is     adversely affected by the ability of an unprivileged user to craft Netlink messages. (CVE-2021-27364)

  - An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have     appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can     send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a     Netlink message. (CVE-2021-27365)

  - net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI     controller. (CVE-2021-32399)

  - The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because     the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads     to writing an arbitrary value. (CVE-2021-33033)

  - In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an     hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value. (CVE-2021-33034)

  - An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free     during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458.
    (CVE-2021-3347)

  - fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer     allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an     unprivileged user, aka CID-8cae8cd89f05. (CVE-2021-33909)

  - A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API,     is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-     of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.
    (CVE-2021-3501)

  - arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest     OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. (CVE-2021-37576)

  - net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service     (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.
    (CVE-2021-38201)

  - A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket     file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race     condition. This flaw allows a local user to crash the system or escalate their privileges on the system.
    This flaw affects Linux kernel versions prior to 5.16-rc4. (CVE-2021-4083)

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

An update of the linux package has been released.

The Rocky Linux 8.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0009 advisory.

    This advisory aggregates security fixes for the kernel SRPM in CIQ LTS 8.6. It addresses 214 CVEs:
    CVE-2019-0154, CVE-2020-29661, CVE-2019-11091, CVE-2021-3609, CVE-2019-8912, and 209 more.

Tenable has extracted the preceding description block directly from the CIQ 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 Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2021:2168 advisory.

  - A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API,     is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-     of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.
    (CVE-2021-3501)

  - A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs     forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to     crash the system or escalate their privileges on the system. (CVE-2021-3543)

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:2168 advisory.

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

    Security Fix(es):

    * kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32     GB from vcpu->run (CVE-2021-3501)

    * kernel: nitro_enclaves stale file descriptors on failed usercopy (CVE-2021-3543)

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

    Bug Fix(es):

    * OVS mistakenly using local IP as tun_dst for VXLAN packets (?) (BZ#1944667)

    * Selinux: The task calling security_set_bools() deadlocks with itself when it later calls     selinux_audit_rule_match(). (BZ#1945123)

    * [mlx5] tc flower mpls match options does not work (BZ#1952061)

    * mlx5: missing patches for ct.rel (BZ#1952062)

    * CT HWOL: with OVN/OVS, intermittently, load balancer hairpin TCP packets get dropped for seconds in a     row (BZ#1952065)

    * [Lenovo 8.3 bug] Blackscreen after clicking on Settings icon from top-right corner. (BZ#1952900)

    * RHEL 8.x missing uio upstream fix. (BZ#1952952)

    * Turbostat doesn't show any measured data on AMD Milan (BZ#1952987)

    * P620 no sound from front headset jack (BZ#1954545)

    * RHEL kernel 8.2 and higher are affected by data corruption bug in raid1 arrays using bitmaps.
    (BZ#1955188)

    * [net/sched] connection failed with DNAT + SNAT by tc action ct (BZ#1956458)

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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API,     is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-     of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.
    (CVE-2021-3501)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Ubuntu 21.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4977-1 advisory.

    Kiyin () discovered that the NFC LLCP protocol implementation in the Linux kernel contained a     reference counting error. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2020-25670)

    Kiyin () discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly     deallocate memory in certain error situations. A local attacker could use this to cause a denial of     service (memory exhaustion). (CVE-2020-25671, CVE-2020-25672)

    Kiyin () discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly     handle error conditions in some situations, leading to an infinite loop. A local attacker could use this     to cause a denial of service. (CVE-2020-25673)

    Piotr Krysiuk and Benedict Schlueter discovered that the eBPF implementation in the Linux kernel performed     out of bounds speculation on pointer arithmetic. A local attacker could use this to expose sensitive     information. (CVE-2021-29155)

    Reiji Watanabe discovered that the KVM VMX implementation in the Linux kernel did not properly prevent     user space from tampering with an array index value, leading to a potential out-of-bounds write. A local     attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2021-3501)

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.

ID	名稱	產品	系列	已發布	已更新	嚴重性
150145	Oracle Linux 8 : kernel (ELSA-2021-2168)	Nessus	Oracle Linux Local Security Checks	2021/6/2	2026/2/9	high
294224	MiracleLinux 8 : kernel-4.18.0-305.3.1.el8_4 (AXSA:2021-2223:13)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	high
150234	Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4983-1)	Nessus	Ubuntu Local Security Checks	2021/6/4	2024/8/28	high
187320	NewStart CGSL MAIN 6.02 : kernel Multiple Vulnerabilities (NS-SA-2023-0061)	Nessus	NewStart CGSL Local Security Checks	2023/12/27	2025/10/6	high
203374	Photon OS 4.0: Linux PHSA-2021-4.0-0031	Nessus	PhotonOS Local Security Checks	2024/7/23	2026/11/2	high
358696	Rocky Linux 8.6 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (ciqsa-2026_0009)	Nessus	Rocky Linux Local Security Checks	2026/10/1	2026/10/23	high
157742	Rocky Linux 8 : kernel (RLSA-2021:2168)	Nessus	Rocky Linux Local Security Checks	2022/2/9	2023/11/6	high
150295	RHEL 8 : kernel (RHSA-2021:2168)	Nessus	Red Hat Local Security Checks	2021/6/4	2024/11/7	high
248259	Linux Distros Unpatched Vulnerability : CVE-2021-3501	Nessus	Misc.	2025/8/11	2026/7/17	high
150151	Ubuntu 21.04 : Linux kernel vulnerabilities (USN-4977-1)	Nessus	Ubuntu Local Security Checks	2021/6/2	2024/8/27	high

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