CVE-2009-1243

MediumCVSS 5.5/10Last modified Jun 16, 2026

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."

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-667

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=30842f2989aacfaba3ccb39829b3417be9313dbeBroken Link
http://openwall.com/lists/oss-security/2009/04/01/4Mailing List, Patch, Third Party Advisory
http://secunia.com/advisories/34478Broken Link, Third Party Advisory
http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-proc-net-udp-8586Patch, Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1Broken Link
http://www.securityfocus.com/bid/34329Broken Link, Patch, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2009/0924Broken Link, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/49595Third Party Advisory, VDB Entry
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=30842f2989aacfaba3ccb39829b3417be9313dbeBroken Link
http://openwall.com/lists/oss-security/2009/04/01/4Mailing List, Patch, Third Party Advisory
http://secunia.com/advisories/34478Broken Link, Third Party Advisory
http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-proc-net-udp-8586Patch, Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1Broken Link
http://www.securityfocus.com/bid/34329Broken Link, Patch, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2009/0924Broken Link, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/49595Third Party Advisory, VDB Entry

Timeline

Published: Apr 6, 2009
Last modified: Jun 16, 2026
NVD status: Modified

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