CVE-2020-11100

NameCVE-2020-11100
DescriptionIn hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-4649-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
haproxy (PTS)stretch1.7.5-2fixed
buster1.8.19-1+deb10u3fixed
buster (security)1.8.19-1+deb10u2fixed
bullseye, sid2.0.18-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
haproxysourcejessie(not affected)
haproxysourcestretch(not affected)
haproxysourcebuster1.8.19-1+deb10u2DSA-4649-1
haproxysource(unstable)2.0.13-2

Notes

[stretch] - haproxy <not-affected> (Vulnerable code introduced in 1.8)
[jessie] - haproxy <not-affected> (Vulnerable code introduced in 1.8)
https://git.haproxy.org/?p=haproxy-2.1.git;a=commit;h=f17f86304f187b0f10ca6a8d46346afd9851a543

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