QID 357089

Date Published: 2024-02-07

QID 357089: Amazon Linux Security Advisory for kernel : ALAS2-2024-2443

An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 (netfilter: nf_tables: reject tables of unsupported family); while creating a new netfilter table, lack of a safeguard against invalid nf_tables family (pf) values within `nf_tables_newtable` function enables an attacker to achieve out-of-bounds access. (
( CVE-2023-6040) a race condition was found in the gsm 0710 tty multiplexor in the linux kernel.
This issue occurs when two threads execute the gsmioc_setconf ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux.
This could allow a local unprivileged user to escalate their privileges on the system. (
( CVE-2023-6546) a heap out-of-bounds write vulnerability in the linux kernel's performance events system component can be exploited to achieve local privilege escalation. a perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group(). we recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b. (
( CVE-2023-6931)



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2024-2443 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 357089

    CVE-2023-6931 | CVE-2023-6546 | CVE-2023-6040 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2024-2443 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2024-2443.html
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