| Name | CVE-2024-45506 |
| Description | HAProxy 2.9.x before 2.9.10, 3.0.x before 3.0.4, and 3.1.x through 3.1-dev6 allows a remote denial of service for HTTP/2 zero-copy forwarding (h2_send loop) under a certain set of conditions, as exploited in the wild in 2024. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| haproxy (PTS) | jessie, jessie (lts) | 1.5.8-3+deb8u4 | fixed |
| stretch (security) | 1.7.5-2+deb9u1 | fixed |
| stretch (lts), stretch | 1.7.5-2+deb9u2 | fixed |
| buster (security), buster, buster (lts) | 1.8.19-1+deb10u5 | fixed |
| bullseye (security), bullseye | 2.2.9-2+deb11u6 | fixed |
| bookworm (security), bookworm | 2.6.12-1+deb12u1 | fixed |
| sid, trixie | 2.9.11-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| haproxy | source | jessie | (not affected) | | | |
| haproxy | source | stretch | (not affected) | | | |
| haproxy | source | buster | (not affected) | | | |
| haproxy | source | bullseye | (not affected) | | | |
| haproxy | source | bookworm | (not affected) | | | |
| haproxy | source | (unstable) | 2.9.10-1 | | | |
Notes
[bookworm] - haproxy <not-affected> (Only exploitable with zero-copy-forward)
[bullseye] - haproxy <not-affected> (Only exploitable with zero-copy-forward)
http://git.haproxy.org/?p=haproxy-2.9.git;a=commit;h=c6bc43e9ac18f122f9dee22df47ab1b7ef57b429 (v2.9.10)
http://git.haproxy.org/?p=haproxy-3.0.git;a=commit;h=c725db17e8416ffb3c1537aea756356228ce5e3c (v3.0.4)
[buster] - haproxy <not-affected> (Only exploitable with zero-copy-forward)
[stretch] - haproxy <not-affected> (Only exploitable with zero-copy-forward)
[jessie] - haproxy <not-affected> (Only exploitable with zero-copy-forward)