QID 242498

Date Published: 2023-11-22

QID 242498: Red Hat Update for kernel-rt (RHSA-2023:7424)

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: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead (cve-2023-3611).
    Kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function (cve-2023-3776).
    Kernel: net/sched: use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (cve-2023-4128, cve-2023-4206, cve-2023-4207, cve-2023-4208).
    Hw: intel: gather data sampling (gds) side channel vulnerability (cve-2022-40982).
Affected Products:
    Red Hat enterprise linux for real time 7 x86_64.
    Red hat enterprise linux for real time for nfv 7 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-2023:7424 for updates and patch information.
    Vendor References

    CVEs related to QID 242498

    CVE-2023-4208 | CVE-2022-40982 | CVE-2023-3611 | CVE-2023-3776 | CVE-2023-4206 | CVE-2023-4207 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2023:7424 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2023:7424
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