CVE-2018-20615

Published: 31 December 2018

An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash. The processing of the PRIORITY flag in a HEADERS frame requires 5 extra bytes, and while these bytes are skipped, the total frame length was not re-checked to make sure they were present in the frame.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
haproxy
Launchpad, Ubuntu, Debian
Upstream
Released (1.8.16-2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1.8.8-1ubuntu0.3)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable
(code not present)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected [code not present])
Patches:
Upstream: https://github.com/haproxy/haproxy/commit/a01f45e3ced23c799f6e78b5efdbd32198a75354