CVE-2015-3202

Public Exploit

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.

Category

3.6
CVSS
Severity: Low
CVSS 2.0 •
EPSS 0.30%
Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.debian.org/security/2015/dsa-3268 vendor advisory
http://www.ubuntu.com/usn/USN-2617-1 vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159543.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160094.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159831.html vendor advisory
http://www.securitytracker.com/id/1032386 vdb entry
https://gist.github.com/taviso/ecb70eb12d461dd85cba exploit
http://www.securityfocus.com/bid/74765 vdb entry
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159298.html vendor advisory
http://lists.opensuse.org/opensuse-updates/2015-06/msg00007.html vendor advisory
http://www.debian.org/security/2015/dsa-3266 vendor advisory
https://security.gentoo.org/glsa/201603-04 vendor advisory
http://www.ubuntu.com/usn/USN-2617-2 vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160106.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159683.html vendor advisory
https://security.gentoo.org/glsa/201701-19 vendor advisory
http://www.openwall.com/lists/oss-security/2015/05/21/9 mailing list exploit
http://lists.opensuse.org/opensuse-updates/2015-06/msg00005.html vendor advisory
http://packetstormsecurity.com/files/132021/Fuse-Local-Privilege-Escalation.html
https://twitter.com/taviso/status/601370527437967360
https://www.exploit-db.com/exploits/37089/ exploit
http://www.ubuntu.com/usn/USN-2617-3 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-3202?
CVE-2015-3202 has been scored as a low severity vulnerability.
How to fix CVE-2015-3202?
To fix CVE-2015-3202, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-3202 being actively exploited in the wild?
It is possible that CVE-2015-3202 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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