The radvd daemon would not fail on privsepinit() errors, which could cause it to run with full root privileges when it should be running as an unprivileged user. (CVE-2011-3603)

This is corrected in upstream git [1], [2], [3].

[1] https://github.com/reubenhwk/radvd/commit/2c50375043186e133f15135f4c93ca964238ee60 [2] https://github.com/reubenhwk/radvd/commit/074816cd0b37aac7b3209987e6e998f0a847b275 [3] https://github.com/reubenhwk/radvd/commit/7dc53cc3b792775369bf0b2f053a3f4ed5d87e3d

Acknowledgements:

Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting this issue.

Directory traversal vulnerability in device-linux.c in the router advertisement daemon (radvd) before 1.8.2 allows local users to overwrite arbitrary files, and remote attackers to overwrite certain files, via a .. (dot dot) in an interface name. NOTE: this can be leveraged with a symlink to overwrite arbitrary files.

The processrs function in the router advertisement daemon (radvd) before 1.8.2, when UnicastOnly is enabled, allows remote attackers to cause a denial of service (temporary service hang) via a large number of NDROUTERSOLICIT requests.

The processra function in the router advertisement daemon (radvd) before 1.8.2 allows remote attackers to cause a denial of service (stack-based buffer over-read and crash) via unspecified vectors.

Buffer overflow in the processra function in the router advertisement daemon (radvd) before 1.8.2 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative value in a labellen value.

The L3 agent in OpenStack Neutron 2014.2.x before 2014.2.2, when using radvd 2.0+, allows remote authenticated users to cause a denial of service (blocked router update processing) by creating eight routers and assigning an ipv6 non-provider subnet to each.