| Name | CVE-2023-5824 |
| Description | A flaw was found in Squid. The limits applied for validation of HTTP response headers are applied before caching. However, Squid may grow a cached HTTP response header beyond the configured maximum size, causing a stall or crash of the worker process when a large header is retrieved from the disk cache, resulting in a denial of service. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1055249 |
Vulnerable and fixed packages
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 | vulnerable |
| bookworm (security), bookworm | 5.7-2+deb12u2 | vulnerable |
| sid, trixie | 6.12-1 | fixed |
| squid3 (PTS) | jessie, jessie (lts) | 3.5.23-5+deb8u7 | fixed |
| stretch (security) | 3.5.23-5+deb9u7 | fixed |
| 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 | (not affected) | | | |
| squid | source | (unstable) | 6.5-1 | | | 1055249 |
| squid3 | source | jessie | (not affected) | | | |
| squid3 | source | stretch | (not affected) | | | |
| squid3 | source | (unstable) | (unfixed) | | | |
Notes
[bookworm] - squid <ignored> (Minor impact, too intrusive to backport to 5.x)
[bullseye] - squid <ignored> (Minor impact, too intrusive to backport to 5.x)
https://github.com/squid-cache/squid/security/advisories/GHSA-543m-w2m2-g255
https://megamansec.github.io/Squid-Security-Audit/cache-headers.html
[buster] - squid <not-affected> (vulnerable code introduced in 5.0.1)
[stretch] - squid3 <not-affected> (vulnerable code introduced in 5.0.1)
[jessie] - squid3 <not-affected> (vulnerable code introduced in 5.0.1)