What is CVE-2009-2692?

CVE-2009-2692 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2009-2692 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2009-2692?

CVE-2009-2692 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2009-2692?

No patch is currently available for CVE-2009-2692. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2009-2692 actively exploited?

CVE-2009-2692 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2009-2692

High

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.

Package Linux Kernel

Published 2009-08-14

Last modified 2026-04-23

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-908

CVE-2009-2692 is classified as CWE-908

See CWE-908 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2009-2692 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Archives
http://archives.neohapsis.com/archives/fulldisclosure/2009-08/0174.html

Broken Link Exploit
Blog
http://blog.cr0.org/2009/08/linux-null-pointer-dereference-due-to.html

Exploit Issue Tracking
Grsecurity
http://grsecurity.net/~spender/wunderbar_emporium.tgz

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

Mailing List
Red Hat
http://rhn.redhat.com/errata/RHSA-2009-1222.html

Third Party Advisory
Red Hat
http://rhn.redhat.com/errata/RHSA-2009-1223.html

Third Party Advisory
Secunia
http://secunia.com/advisories/36278

Broken Link Vendor Advisory
Secunia
http://secunia.com/advisories/36289

Broken Link Vendor Advisory
Secunia
http://secunia.com/advisories/36327

Broken Link Vendor Advisory
Secunia
http://secunia.com/advisories/36430

Broken Link Vendor Advisory
Secunia
http://secunia.com/advisories/37298

Broken Link Vendor Advisory
Secunia
http://secunia.com/advisories/37471

Broken Link Vendor Advisory
Support
http://support.avaya.com/css/P8/documents/100067254

Third Party Advisory
Wiki
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0121

Broken Link
Debian Security
http://www.debian.org/security/2009/dsa-1865

Mailing List Third Party Advisory
Exploit-DB
http://www.exploit-db.com/exploits/19933

Exploit Third Party Advisory VDB Entry
Exploit-DB
http://www.exploit-db.com/exploits/9477

Third Party Advisory VDB Entry
Kernel.org
http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.5

Broken Link Vendor Advisory
Kernel.org
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5

Broken Link Vendor Advisory
Kernel.org
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6

Broken Link Vendor Advisory
Mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2009:233

Broken Link
Red Hat
http://www.redhat.com/support/errata/RHSA-2009-1233.html

Broken Link
Securityfocus
http://www.securityfocus.com/archive/1/505751/100/0/threaded

Broken Link Third Party Advisory VDB Entry
Securityfocus
http://www.securityfocus.com/archive/1/505912/100/0/threaded

Broken Link Third Party Advisory VDB Entry
Securityfocus
http://www.securityfocus.com/archive/1/507985/100/0/threaded

Broken Link Third Party Advisory VDB Entry
Securityfocus
http://www.securityfocus.com/archive/1/512019/100/0/threaded

Broken Link Third Party Advisory VDB Entry
Securityfocus
http://www.securityfocus.com/bid/36038

Broken Link Exploit Third Party Advisory VDB Entry
Vmware
http://www.vmware.com/security/advisories/VMSA-2009-0016.html

Third Party Advisory
Vupen
http://www.vupen.com/english/advisories/2009/3316

Broken Link Vendor Advisory
Zenthought
http://zenthought.org/content/file/android-root-2009-08-16-source

Broken Link
Issues
https://issues.rpath.com/browse/RPL-3103

Broken Link
Oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11526

Broken Link
Oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11591

Broken Link
Oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8657

Broken Link
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.37.y.git%3Ba=commit%3Bh=c18d0fe535a73b219f960d1af3d0c264555a12e3
Patch
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e694958388c50148389b0e9b9e9e8945cf0f1b98
Patch
Kernel patch commit
http://www.openwall.com/lists/oss-security/2009/08/14/1
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2009-2692

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2009-08-14

Modified 2026-04-23

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2009-2692?

CVE-2009-2692 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2009-2692 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2009-2692?

CVE-2009-2692 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2009-2692?

No patch is currently available for CVE-2009-2692. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2009-2692 actively exploited?

No — CVE-2009-2692 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.