CVE-2017-9048

Published: 18 May 2017

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian
Upstream
Released (2.9.4+dfsg1-3.1)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (2.9.3+dfsg1-1ubuntu0.3)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (2.9.1+dfsg1-3ubuntu4.10)
Patches:
Upstream: https://git.gnome.org/browse/libxml2/commit/?id=932cc9896ab41475d4aa429c27d9afd175959d74