CVE-2024-26835 Affecting bpftool package, versions <0:7.4.0-503.11.1.el9_5


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-ORACLE9-BPFTOOL-8395934
  • published20 Nov 2024
  • disclosed17 Apr 2024

Introduced: 17 Apr 2024

CVE-2024-26835  (opens in a new tab)

How to fix?

Upgrade Oracle:9 bpftool to version 0:7.4.0-503.11.1.el9_5 or higher.
This issue was patched in ELSA-2024-9315.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool 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:

netfilter: nf_tables: set dormant flag on hook register failure

We need to set the dormant flag again if we fail to register the hooks.

During memory pressure hook registration can fail and we end up with a table marked as active but no registered hooks.

On table/base chain deletion, nf_tables will attempt to unregister the hook again which yields a warn splat from the nftables core.

CVSS Scores

version 3.1