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CVE-2022-48627 Affecting kernel-debug-uki-virt package, versions <0:5.14.0-427.26.1.el9_4

Severity

 Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.04% (12th percentile)

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  • Snyk ID SNYK-ORACLE9-KERNELDEBUGUKIVIRT-7546160
  • published 20 Jul 2024
  • disclosed 2 Mar 2024
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Introduced: 2 Mar 2024

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

How to fix?

Upgrade Oracle:9 kernel-debug-uki-virt to version 0:5.14.0-427.26.1.el9_4 or higher.
This issue was patched in ELSA-2024-4583.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-uki-virt package and not the kernel-debug-uki-virt package as distributed by Oracle. See How to fix? for Oracle: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.

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