CVE-2009-1336

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-04-22 · updated 2026-06-16
Weakness: CWE-20

Description

fs/nfs/client.c in the Linux kernel before 2.6.23 does not properly initialize a certain structure member that stores the maximum NFS filename length, which allows local users to cause a denial of service (OOPS) via a long filename, related to the encode_lookup function.

Affected products

Linux kernel: through 2.6.22.19; 2.6, 2.6.0, 2.6.1, 2.6.2, 2.6.10, 2.6.11 (+192)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=54af3bb543c071769141387a42deaaab5074da55
http://rhn.redhat.com/errata/RHSA-2009-0473.html
http://secunia.com/advisories/35011
http://secunia.com/advisories/35015
http://secunia.com/advisories/35160
http://secunia.com/advisories/35324
http://secunia.com/advisories/35656
http://secunia.com/advisories/37471
http://www.debian.org/security/2009/dsa-1794
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.23
http://www.openwall.com/lists/oss-security/2009/04/06/1
http://www.openwall.com/lists/oss-security/2009/04/17/2

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