CVE-2009-0787

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: 2009-03-25 · updated 2026-06-16
Weakness: CWE-189

Description

The ecryptfs_write_metadata_to_contents function in the eCryptfs functionality in the Linux kernel 2.6.28 before 2.6.28.9 uses an incorrect size when writing kernel memory to an eCryptfs file header, which triggers an out-of-bounds read and allows local users to obtain portions of kernel memory.

Affected products

Linux kernel: 2.6.28, 2.6.28.1, 2.6.28.2, 2.6.28.3, 2.6.28.4, 2.6.28.5 (+3)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=8faece5f906725c10e7a1f6caf84452abadbdc7b
http://osvdb.org/52860
http://rhn.redhat.com/errata/RHSA-2009-0473.html
http://secunia.com/advisories/34422
http://secunia.com/advisories/35015
http://secunia.com/advisories/37471
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.9
http://www.securityfocus.com/archive/1/507985/100/0/threaded
http://www.securityfocus.com/bid/34216
http://www.securitytracker.com/id?1022177
http://www.vmware.com/security/advisories/VMSA-2009-0016.html
http://www.vupen.com/english/advisories/2009/0802

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