Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://www.debian.org/security/2008/dsa-1630 ↗
- http://www.redhat.com/support/errata/RHSA-2008-0885.html ↗
- https://usn.ubuntu.com/637-1/ ↗
- http://lkml.org/lkml/2008/7/2/83 ↗
- http://secunia.com/advisories/32190 ↗
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6551 ↗
- http://www.debian.org/security/2008/dsa-1636 ↗
- http://secunia.com/advisories/31614 ↗
- http://secunia.com/advisories/31881 ↗
- http://secunia.com/advisories/32104 ↗
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d70b67c8bc72ee23b55381bd6a884f4796692f77 ↗
- http://secunia.com/advisories/31551 ↗
- http://www.vupen.com/english/advisories/2008/2430 ↗
- http://www.redhat.com/support/errata/RHSA-2008-0857.html ↗
- http://www.redhat.com/support/errata/RHSA-2009-0014.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00001.html ↗
- http://www.securitytracker.com/id?1020739 ↗
- http://secunia.com/advisories/33280 ↗
- http://secunia.com/advisories/33556 ↗
- http://www.securityfocus.com/bid/30647 ↗
- http://secunia.com/advisories/32023 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=457858 ↗
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:220 ↗
- http://secunia.com/advisories/32344 ↗
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44410 ↗
- http://www.redhat.com/support/errata/RHSA-2008-0973.html ↗
- http://secunia.com/advisories/31836 ↗
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.15 ↗
- http://www.redhat.com/support/errata/RHSA-2008-0787.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00003.html ↗
- http://secunia.com/advisories/33201 ↗
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10744 ↗