CVE-2020-11100
15Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 61%
exploitation probability
61%top 1% of all CVEs
observed exploitation
nono source reports it
In 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.
Affected products
n/a · n/aReferences
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.htmlhttp://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Write.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1819111https://bugzilla.suse.com/show_bug.cgi?id=1168023https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88https://lists.debian.org/debian-security-announce/2020/msg00052.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/264C7UL3X7L7QE74ZJ557IOUFS3J4QQC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNW5RZLIX7LOXRLV7WMHX22CI43XSXKW/https://security.gentoo.org/glsa/202012-22https://usn.ubuntu.com/4321-1/https://www.debian.org/security/2020/dsa-4649https://www.haproxy.org/download/2.1/src/CHANGELOG