Homepage
About Snyk

Memory Leak Affecting kernel-tools-libs package, versions <0:5.14.0-427.42.1.el9_4

Severity

 Recommended
0.0
medium
0
10

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-ALMALINUX9-KERNELTOOLSLIBS-8339031
  • published 4 Nov 2024
  • disclosed 30 Oct 2024
Report a new vulnerability Found a mistake?

Introduced: 30 Oct 2024

New CVE-2024-43854 Open this link in a new tab
CWE-401 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 kernel-tools-libs to version 0:5.14.0-427.42.1.el9_4 or higher.
This issue was patched in ALSA-2024:8617.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-libs package and not the kernel-tools-libs 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:

block: initialize integrity buffer to zero before writing it to media

Metadata added by bio_integrity_prep is using plain kmalloc, which leads to random kernel memory being written media. For PI metadata this is limited to the app tag that isn't used by kernel generated metadata, but for non-PI metadata the entire buffer leaks kernel memory.

Fix this by adding the __GFP_ZERO flag to allocations for writes.

References

CVSS Scores

version 3.1
Expand this section

NVD

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

5.5 medium
Expand this section

SUSE

5.5 medium