CVE-2020-11100
HIGH8.8EPSS 74.4%haproxy - security update
Published: 4/2/2020Modified: 4/28/2026
Description
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 packages (4)
- Alpine/haproxyfrom 0, < 2.0.14-r0
- Bitnami/haproxy>= 1.8.0, < 2.1.4
- Debian/haproxyfrom 0, < 2.0.13-2
- Debian/haproxyfrom 0, < 1.8.19-1+deb10u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References (17)
- ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2020-11100
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2020-11100
- WEBhttp://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.html
- WEBhttp://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Write.html
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=1819111
- WEBhttps://bugzilla.suse.com/show_bug.cgi?id=1168023
- WEBhttps://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88
- WEBhttps://lists.debian.org/debian-security-announce/2020/msg00052.html
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/264C7UL3X7L7QE74ZJ557IOUFS3J4QQC/
- WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNW5RZLIX7LOXRLV7WMHX22CI43XSXKW/
- WEBhttps://nvd.nist.gov/vuln/detail/CVE-2020-11100
- WEBhttps://security.gentoo.org/glsa/202012-22
- WEBhttps://usn.ubuntu.com/4321-1/
- WEBhttps://www.debian.org/security/2020/dsa-4649
- WEBhttps://www.haproxy.org/download/2.1/src/CHANGELOG
- WEBhttps://www.mail-archive.com/haproxy%40formilux.org/msg36876.html
- WEBhttp://www.haproxy.org