| Name | CVE-2023-50269 |
| Description | Squid is a caching proxy for the Web. Due to an Uncontrolled Recursion bug in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions 6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack against HTTP Request parsing. This problem allows a remote client to perform Denial of Service attack by sending a large X-Forwarded-For header when the follow_x_forwarded_for feature is configured. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. |
| 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-3709-1, DSA-5637-1, ELA-1037-1 |
| Debian Bugs | 1058721 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| squid (PTS) | buster (security), buster, buster (lts) | 4.6-1+deb10u10 | fixed |
| bullseye (security), bullseye | 4.13-10+deb11u3 | fixed | |
| bookworm (security), bookworm | 5.7-2+deb12u2 | fixed | |
| sid, trixie | 6.12-1 | fixed | |
| squid3 (PTS) | jessie, jessie (lts) | 3.5.23-5+deb8u7 | fixed |
| stretch (security) | 3.5.23-5+deb9u7 | vulnerable | |
| stretch (lts), stretch | 3.5.23-5+deb9u10 | 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+deb10u9 | DLA-3709-1 | ||
| squid | source | bullseye | 4.13-10+deb11u3 | DSA-5637-1 | ||
| squid | source | bookworm | 5.7-2+deb12u1 | DSA-5637-1 | ||
| squid | source | (unstable) | 6.6-1 | 1058721 | ||
| squid3 | source | jessie | 3.5.23-5+deb8u7 | ELA-1037-1 | ||
| squid3 | source | stretch | 3.5.23-5+deb9u10 | ELA-1037-1 | ||
| squid3 | source | (unstable) | (unfixed) |
https://github.com/squid-cache/squid/security/advisories/GHSA-wgq4-4cfg-c4x3
http://www.squid-cache.org/Versions/v5/SQUID-2023_10.patch
http://www.squid-cache.org/Versions/v6/SQUID-2023_10.patch