CVE-2009-2692

Description

The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.

References

https://bugzilla.redhat.com/show_bug.cgi?id=516949

http://www.vmware.com/security/advisories/VMSA-2009-0016.html

http://www.openwall.com/lists/oss-security/2009/08/14/1

http://www.exploit-db.com/exploits/9477

http://www.debian.org/security/2009/dsa-1865

http://support.avaya.com/css/P8/documents/100067254

http://rhn.redhat.com/errata/RHSA-2009-1223.html

http://rhn.redhat.com/errata/RHSA-2009-1222.html

http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3