CVE-2019-12527

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.

References

https://www.debian.org/security/2019/dsa-4507

https://usn.ubuntu.com/4065-1/

https://seclists.org/bugtraq/2019/Aug/42

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/

https://github.com/squid-cache/squid/commits/v4

https://access.redhat.com/errata/RHSA-2019:2593

http://www.squid-cache.org/Versions/v4/changesets/squid-4-7f73e9c5d17664b882ed32590e6af310c247f320.patch

http://www.squid-cache.org/Versions/v4/changesets/

http://www.securityfocus.com/bid/109143

http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html

http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3