The ethtool_get_rxnfc function in net/core/ethtool.c in the Linux kernel before...

Vulnerability Description

The ethtool_get_rxnfc function in net/core/ethtool.c in the Linux kernel before 2.6.36 does not initialize a certain block of heap memory, which allows local users to obtain potentially sensitive information via an ETHTOOL_GRXCLSRLALL ethtool command with a large info.rule_cnt value, a different vulnerability than CVE-2010-2478.

References

• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
• http://secunia.com/advisories/42778
• http://openwall.com/lists/oss-security/2010/10/25/4
• http://secunia.com/advisories/42801
• https://bugzilla.redhat.com/show_bug.cgi?id=646725
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html
• http://secunia.com/advisories/42932
• http://www.ubuntu.com/usn/USN-1041-1
• http://www.redhat.com/support/errata/RHSA-2011-0007.html
• http://openwall.com/lists/oss-security/2010/10/26/1
• http://www.vupen.com/english/advisories/2011/0124
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
• http://www.vupen.com/english/advisories/2011/0298
• http://www.redhat.com/support/errata/RHSA-2010-0958.html
• http://secunia.com/advisories/42758
• http://secunia.com/advisories/42890
• http://www.vupen.com/english/advisories/2011/0012
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ae6df5f96a51818d6376da5307d773baeece4014
• http://www.vupen.com/english/advisories/2011/0070
• http://www.securityfocus.com/bid/44427