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CVE-2013-2236

Published: 23 October 2013

Stack-based buffer overflow in the new_msg_lsa_change_notify function in the OSPFD API (ospf_api.c) in Quagga before 0.99.22.2, when --enable-opaque-lsa and the -a command line option are used, allows remote attackers to cause a denial of service (crash) via a large LSA.

Notes

AuthorNote
jdstrand
requires --enable-opaque-lsa during the build (true for Ubuntu
10.04 LTS and higher)
also requires starting ospfd with '-a'. ospfd is not enabled by
default and the configuration in /etc/quagga/debian.conf does not include
'-a'. Per upstream, normal protection measures (eg, packet filtering,
listening on internal network, etc) would prevent this. Furthermore, it is
difficult to exploit. Considering the above, downgrading to 'low'

Priority

Low

Status

Package Release Status
quagga
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise
Released (0.99.20.1-0ubuntu0.12.04.4)
quantal Ignored
(end of life)
raring Ignored
(end of life)
saucy Ignored
(end of life)
trusty Does not exist
(trusty was not-affected [0.99.22.4-1])
upstream
Released (0.99.22.3)
utopic Not vulnerable
(0.99.22.4-1)
vivid Not vulnerable
(0.99.22.4-1)
wily Not vulnerable
(0.99.22.4-1)
Patches:
proposed: http://lists.quagga.net/pipermail/quagga-dev/2013-July/010625.html
upstream: http://lists.quagga.net/pipermail/quagga-dev/2013-July/010639.html
vendor: http://www.debian.org/security/2013/dsa-2803
upstream: http://git.savannah.gnu.org/gitweb/?p=quagga.git;a=commit;h=c51443f4aa6b7f0b0d6ad5409ad7d4b215092443