Description
fusermount in FUSE before 2.9.3-15 does not properly clear the environment before invoking (1) mount or (2) umount as root, which allows local users to write to arbitrary files via a crafted LIBMOUNT_MTAB environment variable that is used by mount's debugging feature.
Metrics
CVSS 2.0 3.6/10
AV:L/AC:L/Au:N/C:N/I:P/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159298.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159543.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159683.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159831.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160094.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160106.html
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00005.html
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00007.html
- http://packetstormsecurity.com/files/132021/Fuse-Local-Privilege-Escalation.html
- http://www.debian.org/security/2015/dsa-3266
- http://www.debian.org/security/2015/dsa-3268
- http://www.openwall.com/lists/oss-security/2015/05/21/9Exploit
- http://www.securityfocus.com/bid/74765
- http://www.securitytracker.com/id/1032386
- http://www.ubuntu.com/usn/USN-2617-1
- http://www.ubuntu.com/usn/USN-2617-2
- http://www.ubuntu.com/usn/USN-2617-3
- https://gist.github.com/taviso/ecb70eb12d461dd85cbaExploit
- https://security.gentoo.org/glsa/201603-04
- https://security.gentoo.org/glsa/201701-19
- https://twitter.com/taviso/status/601370527437967360
- https://www.exploit-db.com/exploits/37089/
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159298.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159543.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159683.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159831.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160094.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160106.html
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00005.html
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00007.html
- http://packetstormsecurity.com/files/132021/Fuse-Local-Privilege-Escalation.html
- http://www.debian.org/security/2015/dsa-3266
- http://www.debian.org/security/2015/dsa-3268
- http://www.openwall.com/lists/oss-security/2015/05/21/9Exploit
- http://www.securityfocus.com/bid/74765
- http://www.securitytracker.com/id/1032386
- http://www.ubuntu.com/usn/USN-2617-1
- http://www.ubuntu.com/usn/USN-2617-2
- http://www.ubuntu.com/usn/USN-2617-3
- https://gist.github.com/taviso/ecb70eb12d461dd85cbaExploit
- https://security.gentoo.org/glsa/201603-04
- https://security.gentoo.org/glsa/201701-19
- https://twitter.com/taviso/status/601370527437967360
- https://www.exploit-db.com/exploits/37089/
Timeline
- Published
- Jul 2, 2015
- Last modified
- Jun 17, 2026
- NVD status
- Modified