| Name | CVE-2021-31808 |
| Description | An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the proxy). A client sends an HTTP Range request to trigger this. |
| 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 |
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 | Urgency | 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) |
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