CVE-2009-2407

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-07-31 · updated 2026-06-16
Weakness: CWE-119

Description

Heap-based buffer overflow in the parse_tag_3_packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service (system crash) or possibly gain privileges via vectors involving a crafted eCryptfs file, related to a large encrypted key size in a Tag 3 packet.

Affected products

Linux kernel: through 2.6.30.3; 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5 (+302)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f151cd2c54ddc7714e2f740681350476cda03a28
http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
http://risesecurity.org/advisories/RISE-2009003.txt
http://secunia.com/advisories/35985
http://secunia.com/advisories/36045
http://secunia.com/advisories/36051
http://secunia.com/advisories/36054
http://secunia.com/advisories/36116
http://secunia.com/advisories/36131
http://secunia.com/advisories/37471
http://www.debian.org/security/2009/dsa-1844
http://www.debian.org/security/2009/dsa-1845

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