Vulnerability Description
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 Score
CRITICAL
References
- https://git.kernel.org/stable/c/285bd4a5f3f156aa5869843b47a1b1380b774241
- https://git.kernel.org/stable/c/2fdd6d196c656b376cc251e1e9ff110b3ed522e1
- https://git.kernel.org/stable/c/5b439f39f33ec15d319ced3b025e122346fba987
- https://git.kernel.org/stable/c/9f88a99ed511651b2dc2177d6854b2d1b8322e75
- https://git.kernel.org/stable/c/bfebe5110fd135d86d65a0a346e14c106b02028b
- https://git.kernel.org/stable/c/f6f5ee2aa33b350c671721b965251c42cebb962e
FAQ
What is CVE-2026-68343?
CVE-2026-68343 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 entr...
How severe is CVE-2026-68343?
CVE-2026-68343 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-68343?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.