CVE-2024-45506

NameCVE-2024-45506
DescriptionHAProxy 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.
SourceCVE (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 PackageReleaseVersionStatus
haproxy (PTS)jessie, jessie (lts)1.5.8-3+deb8u4fixed
stretch (security)1.7.5-2+deb9u1fixed
stretch (lts), stretch1.7.5-2+deb9u2fixed
buster (security), buster, buster (lts)1.8.19-1+deb10u5fixed
bullseye (security), bullseye2.2.9-2+deb11u6fixed
bookworm (security), bookworm2.6.12-1+deb12u1fixed
sid, trixie2.9.12-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
haproxysourcejessie(not affected)
haproxysourcestretch(not affected)
haproxysourcebuster(not affected)
haproxysourcebullseye(not affected)
haproxysourcebookworm(not affected)
haproxysource(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)

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