QID 241830

Date Published: 2023-07-19

QID 241830: Red Hat Update for kernel-rt (RHSA-2023:4138)

The kernel-rt packages provide the real time linux kernel, which enables fine-tuning for systems with extremely high determinism requirements...Security Fix(es):

    kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c (cve-2022-42896).
    Kernel: use-after-free vulnerability in the perf_group_detach function of the linux kernel performance events (cve-2023-2235).
    Kernel: uninitialized registers on stack in nft_do_chain can cause kernel pointer leakage to um (cve-2022-1016).
    Kernel: use-after-free related to leaf anon_vma double reuse (cve-2022-42703).
    Kernel: bluetooth: unauthorized management command execution (cve-2023-2002).
    Kernel: oob access in the linux kernel's xfs subsystem (cve-2023-2124).
Affected Products:
    Red Hat enterprise linux for real time for x86_64 - 4 years of updates 9.0 x86_64.
    Red hat enterprise linux for real time for nfv for x86_64 - 4 years of updates 9.0 x86_64.
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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 security breach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as Critical - 8.8 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Refer to Red Hat security advisory RHSA-2023:4138 for updates and patch information.
    Vendor References

    CVEs related to QID 241830

    CVE-2022-1016 | CVE-2022-42703 | CVE-2022-42896 | CVE-2023-2002 | CVE-2023-2124 | CVE-2023-2235 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2023:4138 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2023:4138
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