CVE-2008-3275
MEDIUM severity · CVSS 5.5 · Buffer overflow
5.5CVSS MEDIUM
Summary
The (1) real_lookup and (2) __lookup_hash functions in fs/namei.c in the vfs implementation in the Linux kernel before 2.6.25.15 do not prevent creation of a child dentry for a deleted (aka S_DEAD) directory, which allows local users to cause a denial of service ("overflow" of the UBIFS orphan area) via a series of attempted file creations within deleted directories.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d70b67c8bc72ee23b55381bd6a884f4796692f77
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.15
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00001.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00003.htmlAdvisory
- http://secunia.com/advisories/31551
- http://secunia.com/advisories/31614
- http://secunia.com/advisories/31836
- http://lkml.org/lkml/2008/7/2/83Advisory