Vulnerability CVE-2020-11100
Published: 2020-04-02

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.

Type:

CWE-787

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.5/10
6.4/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Redhat -> Openshift container platform 
Haproxy -> Haproxy 
Debian -> Debian linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.html
http://www.haproxy.org
https://bugzilla.redhat.com/show_bug.cgi?id=1819111
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
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