| 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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, 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 | 5.7-2 | fixed |
| sid, trixie | 6.5-1 | fixed |
The information below is based on the following data on fixed versions.
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
https://megamansec.github.io/Squid-Security-Audit/range-uaf.html