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CVE-2022-48627 Affecting kernel-rt-devel package, versions <0:5.14.0-427.26.1.el9_4

Severity

 Recommended
high

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.04% (12th percentile)

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  • Snyk ID SNYK-ALMALINUX9-KERNELRTDEVEL-8325928
  • published 4 Nov 2024
  • disclosed 17 Jul 2024
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Introduced: 17 Jul 2024

CVE-2022-48627 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 kernel-rt-devel to version 0:5.14.0-427.26.1.el9_4 or higher.
This issue was patched in ALSA-2024:4583.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-devel package and not the kernel-rt-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

vt: fix memory overlapping when deleting chars in the buffer

A memory overlapping copy occurs when deleting a long line. This memory overlapping copy can cause data corruption when scr_memcpyw is optimized to memcpy because memcpy does not ensure its behavior if the destination buffer overlaps with the source buffer. The line buffer is not always broken, because the memcpy utilizes the hardware acceleration, whose result is not deterministic.

Fix this problem by using replacing the scr_memcpyw with scr_memmovew.

References

CVSS Scores

version 3.1
Expand this section

SUSE

4.4 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    Low
Expand this section

Red Hat

4.4 medium