Candidate: CVE-2021-39242
PublicDate: 2021-08-17 19:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39242
 https://www.mail-archive.com/haproxy@formilux.org/msg41041.html
 https://ubuntu.com/security/notices/USN-5042-1
Description:
 An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13,
 and 2.4 before 2.4.3. It can lead to a situation with an
 attacker-controlled HTTP Host header, because a mismatch between Host and
 authority is mishandled.
Ubuntu-Description:
Notes:
Mitigation:
Bugs:
 https://bugs.launchpad.net/ubuntu/+source/haproxy/+bug/1940314
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N [7.5 HIGH]


Patches_haproxy:
 upstream: https://git.haproxy.org/?p=haproxy.git;a=commit;h=b5d2b9e154d78e4075db163826c5e0f6d31b2ab1
upstream_haproxy: needs-triage
trusty_haproxy: ignored (out of standard support)
trusty/esm_haproxy: DNE
xenial_haproxy: ignored (out of standard support)
esm-infra/xenial_haproxy: not-affected (code not present)
bionic_haproxy: not-affected (code not present)
focal_haproxy: not-affected (code not present)
hirsute_haproxy: released (2.2.9-1ubuntu0.1)
impish_haproxy: released (2.2.9-2ubuntu1)
jammy_haproxy: released (2.2.9-2ubuntu1)
devel_haproxy: released (2.2.9-2ubuntu1)