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CVE-2022-41318

HIGH
8.6
CVSS Score
Published: December 25, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 05:03 AM UTC
2 products affected across 1 vendorSquidCache Squid

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Severity
HIGH8.6
Exploit prediction
EPSS 3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Squid· Squid Cache
95%
2.5 ≤ v < 5.7
Affected range stops below 5.7, so it looks safe — our inference, not a vendor statement
Cache Squid· Squid Cache
75%
2.5 ≤ v < 5.7
Affected range stops below 5.7, so it looks safe — our inference, not a vendor statement

References (4)

PatchThird Party Advisory
Source: [email protected]
http://www.squid-cache.org/Versions/v4/changesets/SQUID-2022_2.patch
PatchThird Party Advisory
Source: [email protected]
http://www.squid-cache.org/Versions/v5/changesets/SQUID-2022_2.patch
PatchThird Party Advisory
Source: [email protected]
https://github.com/squid-cache/squid/security/advisories/GHSA-394c-rr7q-6g78
Mailing ListPatchThird Party Advisory
Source: [email protected]
https://www.openwall.com/lists/oss-security/2022/09/23/2

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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