CVE-2021-31807

Name	CVE-2021-31807
Description	An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. An integer overflow problem allows a remote server to achieve Denial of Service when delivering responses to HTTP Range requests. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-2685-1, DSA-4924-1
Debian Bugs	989043

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
squid (PTS)	buster	4.6-1+deb10u7	fixed
	buster (security)	4.6-1+deb10u8	fixed
	bullseye (security), bullseye	4.13-10+deb11u2	fixed
	bookworm, sid	5.7-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
squid	source	buster	4.6-1+deb10u6	DSA-4924-1
squid	source	(unstable)	4.13-10		989043
squid3	source	stretch	3.5.23-5+deb9u7	DLA-2685-1
squid3	source	(unstable)	(unfixed)

Notes

https://bugzilla.suse.com/show_bug.cgi?id=1185916
https://github.com/squid-cache/squid/security/advisories/GHSA-pxwq-f3qr-w2xf
http://www.squid-cache.org/Versions/v4/changesets/squid-4-e7cf864f938f24eea8af0692c04d16790983c823.patch