Use After Free Affecting bpftool package, versions <0:7.2.0-362.24.1.el9_3


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.84% (53rd percentile)

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  • Snyk IDSNYK-ORACLE9-BPFTOOL-6467485
  • published20 Mar 2024
  • disclosed2 Jan 2024

Introduced: 2 Jan 2024

CVE-2024-0193  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:9 bpftool to version 0:7.2.0-362.24.1.el9_3 or higher.
This issue was patched in ELSA-2024-1248.

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.

A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with CAP_NET_ADMIN capability to escalate their privileges on the system.

CVSS Base Scores

version 3.1