CVE-2022-41318
Due to incorrect integer-overflow protection, the SSPI and SMB authentication helpers are vulnerable to reading unintended memory locations.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.82%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public 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.
- CVSS 3.1
- 8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
- EPSS
- 2.82% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- squid-cache/squid
- Source
- cve@mitre.org
References
- http://www.squid-cache.org/Versions/v4/changesets/SQUID-2022_2.patchPatch, Third Party Advisory
- http://www.squid-cache.org/Versions/v5/changesets/SQUID-2022_2.patchPatch, Third Party Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-394c-rr7q-6g78Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/09/23/2Mailing List, Patch, Third Party Advisory
- http://www.squid-cache.org/Versions/v4/changesets/SQUID-2022_2.patchPatch, Third Party Advisory
- http://www.squid-cache.org/Versions/v5/changesets/SQUID-2022_2.patchPatch, Third Party Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-394c-rr7q-6g78Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/09/23/2Mailing List, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.