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CentOS Linux: CVE-2023-3609: Important: kpatch-patch security update (Multiple Advisories)

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CentOS Linux: CVE-2023-3609: Important: kpatch-patch security update (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
07/21/2023
Created
10/11/2023
Added
10/11/2023
Modified
10/11/2023

Description

A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 04c55383fa5689357bcdd2c8036725a55ed632bc.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt
  • centos-upgrade-kpatch-patch-3_10_0-1160_88_1
  • centos-upgrade-kpatch-patch-3_10_0-1160_88_1-debuginfo
  • centos-upgrade-kpatch-patch-3_10_0-1160_90_1
  • centos-upgrade-kpatch-patch-3_10_0-1160_90_1-debuginfo
  • centos-upgrade-kpatch-patch-3_10_0-1160_92_1
  • centos-upgrade-kpatch-patch-3_10_0-1160_92_1-debuginfo
  • centos-upgrade-kpatch-patch-3_10_0-1160_95_1
  • centos-upgrade-kpatch-patch-3_10_0-1160_95_1-debuginfo
  • centos-upgrade-kpatch-patch-3_10_0-1160_99_1
  • centos-upgrade-kpatch-patch-3_10_0-1160_99_1-debuginfo

References

  • CVE-2023-3609

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