QID 242483

Date Published: 2023-11-22

QID 242483: Red Hat Update for kernel-rt (RHSA-2023:7389)

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: cls_fw component can be exploited as result of failure in tcf_change_indev function (cve-2023-3776).
    Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags (cve-2023-3812).
    Kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() (cve-2023-4004).
    Kernel: netfilter: nf_tables_newrule when adding a rule with nfta_rule_chain_id leads to use-after-free (cve-2023-4147).
    Kernel: netfilter: potential slab-out-of-bound access due to integer underflow (cve-2023-42753).
    Kernel: use-after-free due to race condition in qdisc_graft() (cve-2023-0590).
    Hw: amd: cross-process information leak (cve-2023-20593).
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-2023:7389 for updates and patch information.
    Vendor References

    CVEs related to QID 242483

    CVE-2023-42753 | CVE-2023-0590 | CVE-2023-20593 | CVE-2023-3776 | CVE-2023-3812 | CVE-2023-4004 | CVE-2023-4147 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2023:7389 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2023:7389
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