Description
An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://www.squid-cache.org/Versions/v4/changesets/ ↗
- https://github.com/squid-cache/squid/commits/v4 ↗
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-7f73e9c5d17664b882ed32590e6af310c247f320.patch ↗
- http://www.securityfocus.com/bid/109143 ↗
- https://usn.ubuntu.com/4065-1/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/ ↗
- https://www.debian.org/security/2019/dsa-4507 ↗
- https://seclists.org/bugtraq/2019/Aug/42 ↗
- https://access.redhat.com/errata/RHSA-2019:2593 ↗
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html ↗