CVE Database
CVE-2009-2692
| Impact: | Important (classification) |
| Public: | August 13 2009 |
| Bugzilla: | 516949: CVE-2009-2692 kernel: uninit op in SOCKOPS_WRAP() leads to privesc |
Details
The MITRE CVE dictionary describes this issue as:
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.
Find out more about CVE-2009-2692 from the MITRE CVE dictionary and NIST NVD.
Statement
Red Hat is aware of this issue. Please see http://kbase.redhat.com/faq/docs/DOC-18065.
Updates for Red Hat Enterprise Linux 3, 4, 5, and Red Hat Enterprise MRG to correct this issue are available: https://rhn.redhat.com/cve/CVE-2009-2692.html
CVSS v2 metrics
| Base Score: | 7.2 | Base Metrics: | AV:L/AC:L/Au:N/C:C/I:C/A:C |
| Access Vector: | Local | Confidentiality Impact: | Complete |
| Access Complexity: | Low | Integrity Impact: | Complete |
| Authentication: | None | Availability Impact: | Complete |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Red Hat security errata
| Platform | Errata | Release Date |
| Red Hat Enterprise Linux version 5 (kernel) | RHSA-2009:1222 | August 24 2009 |
| Red Hat Enterprise Linux version 4 (kernel) | RHSA-2009:1223 | August 24 2009 |
| Red Hat Enterprise Linux version 3 (kernel) | RHSA-2009:1233 | August 27 2009 |
| MRG Grid for RHEL 5 Server (kernel-rt) | RHSA-2009:1239 | September 01 2009 |
| Red Hat Enterprise Linux EUS (v. 5.2 server) (kernel) | RHSA-2009:1457 | September 22 2009 |
| Red Hat Enterprise Linux ES EUS (v. 4.7) (kernel) | RHSA-2009:1469 | September 30 2009 |
Acknowledgements
Red Hat would like to thank Tavis Ormandy and Julien Tinnes of the Google Security Team for responsibly reporting this flaw.
This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Red Hat Security Response Team.
