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

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

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

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/

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

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

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

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

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

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

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

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3