CVE-2023-40225

NameCVE-2023-40225
DescriptionHAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpret the payload as an extra request.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-5590-1
Debian Bugs1043502

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
haproxy (PTS)buster1.8.19-1+deb10u3fixed
buster (security)1.8.19-1+deb10u5fixed
bullseye (security), bullseye2.2.9-2+deb11u6fixed
bookworm, bookworm (security)2.6.12-1+deb12u1fixed
trixie2.9.8-1fixed
sid2.9.9-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
haproxysourcebuster(not affected)
haproxysourcebullseye2.2.9-2+deb11u6DSA-5590-1
haproxysourcebookworm2.6.12-1+deb12u1DSA-5590-1
haproxysource(unstable)2.6.15-11043502

Notes

[buster] - haproxy <not-affected> (Vulnerable code not present)
https://github.com/haproxy/haproxy/issues/2237
https://github.com/haproxy/haproxy/commit/6492f1f29d738457ea9f382aca54537f35f9d856
https://git.haproxy.org/?p=haproxy-2.2.git;a=commit;h=e8ba5e106444fc78558f4ff26e9ce946f89216f4 (v2.2.31)
https://git.haproxy.org/?p=haproxy-2.6.git;a=commit;h=d17c50010d591d1c070e1cb0567a06032d8869e9 (v2.6.15)

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