Buffer Access with Incorrect Length Value Affecting kernel6.12-tools package, versions <1:6.12.103-127.188.amzn2023


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.51% (42nd percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL612TOOLS-19476411
  • published1 Sept 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

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

How to fix?

Upgrade Amazon-Linux:2023 kernel6.12-tools to version 1:6.12.103-127.188.amzn2023 or higher.
This issue was patched in ALAS2023-2026-2110.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel6.12-tools package and not the kernel6.12-tools package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 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