Out-of-bounds Write The advisory has been revoked - it doesn't affect any version of package haproxy (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN9-HAPROXY-601937
- published2 Apr 2020
- disclosed2 Apr 2020
Introduced: 2 Apr 2020
CVE-2020-11100 (opens in a new tab)Amendment
The Debian security team deemed this advisory irrelevant for Debian:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream haproxy package and not the haproxy package as distributed by Debian.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2020-11100
- https://bugzilla.suse.com/show_bug.cgi?id=1168023
- https://git.haproxy.org/?p=haproxy.git;a=commit;h=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88
- https://lists.debian.org/debian-security-announce/2020/msg00052.html
- https://www.haproxy.org/download/2.1/src/CHANGELOG
- https://www.mail-archive.com/haproxy@formilux.org/msg36876.html
- https://www.debian.org/security/2020/dsa-4649
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/264C7UL3X7L7QE74ZJ557IOUFS3J4QQC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MNW5RZLIX7LOXRLV7WMHX22CI43XSXKW/
- https://security.gentoo.org/glsa/202012-22
- http://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Write.html
- http://www.haproxy.org
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1819111
- https://usn.ubuntu.com/4321-1/
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-11100
- https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88
- https://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://www.mail-archive.com/haproxy%40formilux.org/msg36876.html