CVE-2017-18258

Published: 08 April 2018

The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.

Priority

Low

CVSS 3 base score: 6.5

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 18.04 LTS (Bionic Beaver)
Released (2.9.4+dfsg1-6.1ubuntu1.2)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (2.9.3+dfsg1-1ubuntu0.6)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (2.9.1+dfsg1-3ubuntu4.13)
Patches:
Upstream: https://git.gnome.org/browse/libxml2/commit/?id=e2a9122b8dde53d320750451e9907a7dcb2ca8bb