Buffer Access with Incorrect Length Value Affecting rhcos package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.48% (40th percentile)

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  • Snyk IDSNYK-RHEL7-RHCOS-18684508
  • published12 Aug 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

NewCVE-2026-68343  (opens in a new tab)
CWE-805  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 rhcos.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rhcos package and not the rhcos package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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

smb: client: validate DFS referral PathConsumed

parse_dfs_referrals() validates that the response contains the fixed referral entry array and, on for-next, the per-referral string offsets. However, the response also contains a PathConsumed value that is later used for DFS path parsing.

If a malformed response provides a PathConsumed value larger than the search name, later DFS parsing can advance beyond the end of the path.

Validate PathConsumed against the search name length before storing it in the parsed referral.

CVSS Base Scores

version 3.1