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CVE-2024-38635 Affecting kernel-64kb-devel package, versions <6.4.0-150600.23.14.1

Severity

 Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    0.04% (12th percentile)

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  • Snyk ID SNYK-SLES156-KERNEL64KBDEVEL-7554396
  • published 23 Jul 2024
  • disclosed 22 Jul 2024
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Introduced: 22 Jul 2024

CVE-2024-38635 Open this link in a new tab

How to fix?

Upgrade SLES:15.6 kernel-64kb-devel to version 6.4.0-150600.23.14.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-64kb-devel package and not the kernel-64kb-devel package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

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

soundwire: cadence: fix invalid PDI offset

For some reason, we add an offset to the PDI, presumably to skip the PDI0 and PDI1 which are reserved for BPT.

This code is however completely wrong and leads to an out-of-bounds access. We were just lucky so far since we used only a couple of PDIs and remained within the PDI array bounds.

A Fixes: tag is not provided since there are no known platforms where the out-of-bounds would be accessed, and the initial code had problems as well.

A follow-up patch completely removes this useless offset.

CVSS Scores

version 3.1
Expand this section

SUSE

5.5 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)
    None
  • Availability (A)
    High
Expand this section

Red Hat

4.4 medium