CVE-2010-3879
Description
FUSE, possibly 2.8.5 and earlier, allows local users to create mtab entries with arbitrary pathnames, and consequently unmount any filesystem, via a symlink attack on the parent directory of the mountpoint of a FUSE filesystem, a different vulnerability than CVE-2010-0789.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
OS impact
Debian Fixed 4 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2.8.5-1 |
| sid | Fixed | 2.8.5-1 |
| bullseye | Fixed | 2.8.5-1 |
| bookworm | Fixed | 2.8.5-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| libfuse_project | libfuse | {"endIncluding":"2.8.5"} | |
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=602333
- http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053792.html
- http://lists.grok.org.uk/pipermail/full-disclosure/2010-November/077247.html
- http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
- http://openwall.com/lists/oss-security/2010/11/04/8
- http://openwall.com/lists/oss-security/2010/11/05/2
- http://osvdb.org/70520
- http://secunia.com/advisories/42961
- http://secunia.com/advisories/42965
- http://www.halfdog.net/Security/FuseTimerace/
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:155
- http://www.securityfocus.com/bid/44623
- http://www.ubuntu.com/usn/USN-1045-1
- http://www.ubuntu.com/usn/USN-1045-2
- http://www.vupen.com/english/advisories/2011/0181
- http://www.vupen.com/english/advisories/2011/0302
- https://bugs.launchpad.net/bugs/670622
- https://bugzilla.novell.com/show_bug.cgi?id=651598
- https://bugzilla.redhat.com/show_bug.cgi?id=651183
- https://exchange.xforce.ibmcloud.com/vulnerabilities/62986
- https://security-tracker.debian.org/tracker/CVE-2010-3879
CWEs
CWE-59
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.