Home/CVE/A buffer over-read was discovered in libntlmauth in Squid 2.5 through 5.6. Due to incorrect integer-overflow protection,
CVE

CVE-2022-41318

A buffer over-read was discovered in libntlmauth in Squid 2.5 through 5.6. Due to incorrect integer-overflow protection,

A buffer over-read was discovered in libntlmauth in Squid 2.5 through 5.6. Due to incorrect integer-overflow protection, the SSPI and SMB authentication helpers are vulnerable to reading unintended memory locations. In some configurations, cleartext credentials from these locations are sent to a client.

This is fixed in 5.7.

HIGH · CVSS 8.6 EPSS 0.0014
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

1
squid-cache squid>= 2.5 and < 5.7
▣

Scoring & Timeline

8.6
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Dec 2022 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

13
usnUSN-6857-1
suse-csafopenSUSE-SU-2024:12364-1
suse-csafSUSE-SU-2022:3596-1
suse-csafSUSE-SU-2022:3531-1
suse-csafSUSE-SU-2022:3532-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.squid-cache.org/Versions/v4/changesets/SQUID-2022_2.patchPatchThird Party Advisory
http://www.squid-cache.org/Versions/v5/changesets/SQUID-2022_2.patchPatchThird Party Advisory
https://github.com/squid-cache/squid/security/advisories/GHSA-394c-rr7q-6g78PatchThird Party Advisory
https://www.openwall.com/lists/oss-security/2022/09/23/2Mailing ListPatchThird Party Advisory
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