| Name | CVE-2020-11653 |
| Description | An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss. |
| 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-3208-1 |
| Debian Bugs | 956307 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| varnish (PTS) | jessie, jessie (lts) | 4.0.2-1+deb8u1 | fixed |
| stretch (security), stretch (lts), stretch | 5.0.0-7+deb9u3 | fixed |
| buster (security), buster, buster (lts) | 6.1.1-1+deb10u4 | fixed |
| bullseye (security), bullseye | 6.5.1-1+deb11u3 | fixed |
| bookworm | 7.1.1-1.1 | fixed |
| sid, trixie | 7.6.1-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
[stretch] - varnish <not-affected> (Only affects 6.x)
[jessie] - varnish <not-affected> (Only affects 6.x)
https://varnish-cache.org/security/VSV00005.html#vsv00005
https://github.com/varnishcache/varnish-cache/commit/2d8fc1a784a1e26d78c30174923a2b14ee2ebf62