CVEvulnerability
CVE-2019-12525
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2019-07-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-787
Description
An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1.
Affected configurations
• squid-cache squid (>= 3.3.9 <= 3.5.28)
• squid-cache squid (>= 4.0 <= 4.7)
• debian debian linux 8.0
• debian debian linux 9.0
• debian debian linux 10.0
• opensuse leap 15.0
• opensuse leap 15.1
• fedoraproject fedora 29
• canonical ubuntu linux 12.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 19.04
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/v4/changesets/ Vendor Advisory
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-7f73e9c5d17664b882ed32590e6af310c247f320.patch Patch, Vendor Advisory
- https://github.com/squid-cache/squid/commits/v4 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/07/msg00018.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/ lists.fedoraproject.org
- https://seclists.org/bugtraq/2019/Aug/42 Mailing List, Third Party Advisory
- https://usn.ubuntu.com/4065-1/ Third Party Advisory
- https://usn.ubuntu.com/4065-2/ Third Party Advisory
- https://www.debian.org/security/2019/dsa-4507 Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html Mailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/v4/changesets/ Vendor Advisory
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-7f73e9c5d17664b882ed32590e6af310c247f320.patch Patch, Vendor Advisory
- https://github.com/squid-cache/squid/commits/v4 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/07/msg00018.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/ lists.fedoraproject.org
- https://seclists.org/bugtraq/2019/Aug/42 Mailing List, Third Party Advisory
- https://usn.ubuntu.com/4065-1/ Third Party Advisory
- https://usn.ubuntu.com/4065-2/ Third Party Advisory
- https://www.debian.org/security/2019/dsa-4507 Third Party Advisory