Detections
Analytics

CVE-2020-11100

high

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.

References

https://www.debian.org/security/2020/dsa-4649

https://usn.ubuntu.com/4321-1/

https://security.gentoo.org/glsa/202012-22

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNW5RZLIX7LOXRLV7WMHX22CI43XSXKW/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/264C7UL3X7L7QE74ZJ557IOUFS3J4QQC/

https://lists.debian.org/debian-security-announce/2020/msg00052.html

https://bugzilla.suse.com/show_bug.cgi?id=1168023

https://bugzilla.redhat.com/show_bug.cgi?id=1819111

http://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Write.html

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.html

https://www.mail-archive.com/haproxy%40formilux.org/msg36876.html

https://www.haproxy.org/download/2.1/src/CHANGELOG

https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88

http://www.haproxy.org

Details

Source: Mitre, NVD

Published: 2020-04-02

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.78142