QID 242157

Date Published: 2023-10-12

QID 242157: Red Hat Update for kernel-rt (RHSA-2023:5603)

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: net/sched: use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (cve-2023-4128).
    Kernel: nf_tables: use-after-free in nft_chain_lookup_byid() (cve-2023-31248).
    Kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (cve-2023-35001).
    Kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (cve-2023-35788).
    Kernel: hash collisions in the ipv6 connection lookup table (cve-2023-1206).
    Kernel: spectre v2 smt mitigations problem (cve-2023-1998).
    Kernel: fbcon: shift-out-of-bounds in fbcon_set_font() (cve-2023-3161).
    Kernel: denial of service problem in net/unix/diag.c (cve-2023-28327).
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 High - 7.8 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Refer to Red Hat security advisory RHSA-2023:5603 for updates and patch information.
    Vendor References

    CVEs related to QID 242157

    CVE-2023-1206 | CVE-2023-1998 | CVE-2023-3161 | CVE-2023-4128 | CVE-2023-28327 | CVE-2023-31248 | CVE-2023-35001 | CVE-2023-35788 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2023:5603 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2023:5603
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