| Name | CVE-2024-30156 |
| Description | Varnish Cache before 7.3.2 and 7.4.x before 7.4.3 (and before 6.0.13 LTS), and Varnish Enterprise 6 before 6.0.12r6, allows credits exhaustion for an HTTP/2 connection control flow window, aka a Broke Window Attack. |
| 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 | 1068455 |
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 | vulnerable |
| buster (security), buster, buster (lts) | 6.1.1-1+deb10u4 | vulnerable |
| bullseye (security), bullseye | 6.5.1-1+deb11u3 | vulnerable |
| bookworm | 7.1.1-1.1 | vulnerable |
| sid, trixie | 7.6.0-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| varnish | source | jessie | (not affected) | | | |
| varnish | source | (unstable) | 7.5.0-1 | | | 1068455 |
Notes
[bookworm] - varnish <ignored> (Minor issue, too intrusive to backport)
[bullseye] - varnish <ignored> (Minor issue, too intrusive to backport)
https://varnish-cache.org/security/VSV00014.html
https://varnish-cache.org/docs/7.5/whats-new/changes-7.5.html#cve-2024-30156
https://github.com/varnishcache/varnish-cache/commit/c0201724f0280894ec714fe76fc26ba9831f0551 (varnish-7.5.0)
https://github.com/varnishcache/varnish-cache/commit/727a5f80347545b6fc7a6aa48f9fb74e90528f0c (varnish-7.5.0)
https://github.com/varnishcache/varnish-cache/commit/42a10e90015bd8a9cb1c7c2e0e313f8b5ae9ebe9 (varnish-7.5.0)
https://github.com/varnishcache/varnish-cache/commit/eccb50837d61fcb5a6927eef94c570bd1d03c26d (varnish-7.5.0)
https://github.com/varnishcache/varnish-cache/commit/0b82e00708b88f696af5881b7a19caf2144d13f7 (varnish-7.5.0)
https://github.com/varnishcache/varnish-cache/commit/4938f05b318eb2daa2ccc89dafeed3126552c481 (varnish-7.5.0)
https://github.com/varnishcache/varnish-cache/commit/41ef373af53571a94ea8f73f0538322270799a84 (varnish-7.5.0)
[buster] - varnish <ignored> (Minor issue, too intrusive to backport)
[stretch] - varnish <ignored> (Experimental HTTP/2 support is not recommended)
[jessie] - varnish <not-affected> (HTTP/2 support was added later)