Vulnerability Description
net/ipv4/udp.c in the Linux kernel before 2.6.29.1 performs an unlocking step in certain incorrect circumstances, which allows local users to cause a denial of service (panic) by reading zero bytes from the /proc/net/udp file and unspecified other files, related to the "udp seq_file infrastructure."
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 2.6.29.1 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=Broken Link
- http://openwall.com/lists/oss-security/2009/04/01/4Mailing ListPatchThird Party Advisory
- http://secunia.com/advisories/34478Broken LinkThird Party Advisory
- http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-proc-net-udPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1Broken Link
- http://www.securityfocus.com/bid/34329Broken LinkPatchThird Party Advisory
- http://www.vupen.com/english/advisories/2009/0924Broken LinkThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49595Third Party AdvisoryVDB Entry
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=Broken Link
- http://openwall.com/lists/oss-security/2009/04/01/4Mailing ListPatchThird Party Advisory
- http://secunia.com/advisories/34478Broken LinkThird Party Advisory
- http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-proc-net-udPatchThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1Broken Link
- http://www.securityfocus.com/bid/34329Broken LinkPatchThird Party Advisory
- http://www.vupen.com/english/advisories/2009/0924Broken LinkThird Party Advisory
FAQ
What is CVE-2009-1243?
CVE-2009-1243 is a vulnerability with a CVSS score of 5.5 (MEDIUM). net/ipv4/udp.c in the Linux kernel before 2.6.29.1 performs an unlocking step in certain incorrect circumstances, which allows local users to cause a denial of service (panic) by reading zero bytes fr...
How severe is CVE-2009-1243?
CVE-2009-1243 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-1243?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.