Race condition in the do_add_counters function in netfilter for Linux kernel 2.6.16 allows local users with CAP_NET_ADMIN capabilities to read kernel memory by triggering the race condition in a way that produces a size value that is inconsistent with allocated memory, which leads to a buffer over-read in IPT_ENTRY_ITERATE.
http://bugs.gentoo.org/show_bug.cgi?id=133465
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.17
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=191698
http://secunia.com/advisories/20185
http://secunia.com/advisories/20671
http://secunia.com/advisories/20914
http://secunia.com/advisories/20991
http://secunia.com/advisories/21476
http://secunia.com/advisories/22292
http://secunia.com/advisories/22945
https://exchange.xforce.ibmcloud.com/vulnerabilities/26583
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10309
http://support.avaya.com/elmodocs2/security/ASA-2006-249.htm
http://www.debian.org/security/2006/dsa-1097
http://www.debian.org/security/2006/dsa-1103
http://www.redhat.com/support/errata/RHSA-2006-0689.html
http://www.ubuntu.com/usn/usn-311-1
Published: 2006-05-19
Base Score: 4.7
Vector: CVSS2#AV:L/AC:H/Au:N/C:P/I:N/A:C
Severity: Medium