CVE-2008-3275
MEDIUMCVSS 5.5/10EPSS 0.51%
Last modified
CVE-2008-3275 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.51% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | < 2.6.25.15 | — |
| Debian | Debian Linux | 4.0 | — |
| Canonical | Ubuntu Linux | 6.06 | — |
| Canonical | Ubuntu Linux | 7.04 | — |
| Canonical | Ubuntu Linux | 7.10 | — |
| Canonical | Ubuntu Linux | 8.04 | — |
| Suse | Suse Linux Enterprise Desktop | 10 | Sp1 |
| Suse | Suse Linux Enterprise Server | 10 | Sp1 |
References
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00001.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00003.htmlMailing List, Third Party Advisory
- http://lkml.org/lkml/2008/7/2/83Exploit, Mailing List, Third Party Advisory
- http://secunia.com/advisories/31551Broken Link
- http://secunia.com/advisories/31614Broken Link
- http://secunia.com/advisories/31836Broken Link
- http://secunia.com/advisories/31881Broken Link
- http://secunia.com/advisories/32023Broken Link
- http://secunia.com/advisories/32104Broken Link
- http://secunia.com/advisories/32190Broken Link
- http://secunia.com/advisories/32344Broken Link
- http://secunia.com/advisories/33201Broken Link
- http://secunia.com/advisories/33280Broken Link
- http://secunia.com/advisories/33556Broken Link
- http://www.debian.org/security/2008/dsa-1630Patch, Third Party Advisory
- http://www.debian.org/security/2008/dsa-1636Patch, Third Party Advisory
- http://www.securityfocus.com/bid/30647Patch, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id?1020739Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=457858Issue Tracking, Patch, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44410Third Party Advisory, VDB Entry
- https://usn.ubuntu.com/637-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00001.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00003.htmlMailing List, Third Party Advisory
- http://lkml.org/lkml/2008/7/2/83Exploit, Mailing List, Third Party Advisory
- http://secunia.com/advisories/31551Broken Link
- http://secunia.com/advisories/31614Broken Link
- http://secunia.com/advisories/31836Broken Link
- http://secunia.com/advisories/31881Broken Link
- http://secunia.com/advisories/32023Broken Link
- http://secunia.com/advisories/32104Broken Link
- http://secunia.com/advisories/32190Broken Link
- http://secunia.com/advisories/32344Broken Link
- http://secunia.com/advisories/33201Broken Link
- http://secunia.com/advisories/33280Broken Link
- http://secunia.com/advisories/33556Broken Link
- http://www.debian.org/security/2008/dsa-1630Patch, Third Party Advisory
- http://www.debian.org/security/2008/dsa-1636Patch, Third Party Advisory
- http://www.securityfocus.com/bid/30647Patch, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id?1020739Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=457858Issue Tracking, Patch, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44410Third Party Advisory, VDB Entry
- https://usn.ubuntu.com/637-1/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2008-3275?
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.
How severe is CVE-2008-3275?
CVE-2008-3275 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.
How do I fix CVE-2008-3275?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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