CVE-2019-18677

Description

An issue was discovered in Squid 3.x and 4.x through 4.8 when the append_domain setting is used (because the appended characters do not properly interact with hostname length restrictions). Due to incorrect message processing, it can inappropriately redirect traffic to origins it should not be delivered to.

References

http://www.squid-cache.org/Advisories/SQUID-2019_9.txt

http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-e5f1813a674848dde570f7920873e1071f96e0b4.patch

http://www.squid-cache.org/Versions/v4/changesets/squid-4-36492033ea4097821a4f7ff3ddcb971fbd1e8ba0.patch

https://bugzilla.suse.com/show_bug.cgi?id=1156328

https://github.com/squid-cache/squid/pull/427

https://lists.debian.org/debian-lts-announce/2019/12/msg00011.html

https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/

https://lists.fedoraproject.org/archives/list/[email protected]/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/

https://usn.ubuntu.com/4213-1/

https://www.debian.org/security/2020/dsa-4682

Details

Risk Information

CVSS v2

CVSS v3