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CVE-2014-3660

Published: 16 October 2014

parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack.

Priority

Medium

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian
upstream
Released (2.9.2)
lucid
Released (2.7.6.dfsg-1ubuntu1.15)
precise
Released (2.7.8.dfsg-5.1ubuntu4.11)
trusty
Released (2.9.1+dfsg1-3ubuntu4.4)
utopic
Released (2.9.1+dfsg1-4ubuntu1)
Patches:
upstream: https://git.gnome.org/browse/libxml2/commit/?id=a3f1e3e5712257fd279917a9158278534e8f4b72 (bp)
upstream: https://git.gnome.org/browse/libxml2/commit/?id=cff2546f13503ac028e4c1f63c7b6d85f2f2d777 (bp)
upstream: https://git.gnome.org/browse/libxml2/commit/?id=be2a7edaf289c5da74a4f9ed3a0b6c733e775230