Vulnerability Monitor

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CVE-2009-1243

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."

Published

2009-04-06T14:30:00.407

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-667

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 2.6.29.1	Yes

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=30842f2989aacfaba3ccb39829b3417be9313dbe Broken Link ([email protected])
http://openwall.com/lists/oss-security/2009/04/01/4 Mailing List, Patch, Third Party Advisory ([email protected])
http://secunia.com/advisories/34478 Broken Link, Third Party Advisory ([email protected])
http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-proc-net-udp-8586 Patch, Third Party Advisory ([email protected])
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1 Broken Link ([email protected])
http://www.securityfocus.com/bid/34329 Broken Link, Patch, Third Party Advisory, VDB Entry ([email protected])
http://www.vupen.com/english/advisories/2009/0924 Broken Link, Third Party Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/49595 Third Party Advisory, VDB Entry ([email protected])
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=30842f2989aacfaba3ccb39829b3417be9313dbe Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2009/04/01/4 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/34478 Broken Link, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-proc-net-udp-8586 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.29.1 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/34329 Broken Link, Patch, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/0924 Broken Link, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/49595 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)