Untrusted Pointer Dereference Affecting bpftool package, versions <0:4.18.0-372.113.1.el8_6


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-RHEL8-BPFTOOL-7573712
  • published30 Jul 2024
  • disclosed30 May 2024

Introduced: 30 May 2024

CVE-2024-36929  (opens in a new tab)
CWE-822  (opens in a new tab)

How to fix?

Upgrade RHEL:8 bpftool to version 0:4.18.0-372.113.1.el8_6 or higher.
This issue was patched in RHSA-2024:4902.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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

net: core: reject skb_copy(_expand) for fraglist GSO skbs

SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become invalid. Return NULL if such an skb is passed to skb_copy or skb_copy_expand, in order to prevent a crash on a potential later call to skb_gso_segment.

CVSS Scores

version 3.1