CVE-2015-3202

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Summary

CVECVE-2015-3202
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-07-02 21:59:03 UTC
Updated2026-05-06 22:30:45 UTC
Descriptionfusermount 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.

Risk And Classification

Primary CVSS: v2.0 3.6 from [email protected]

AV:L/AC:L/Au:N/C:N/I:P/A:P

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
Partial

AV:L/AC:L/Au:N/C:N/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 8.0 All All All
Application Fuse Project Fuse All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[SECURITY] Fedora 22 Update: ntfs-3g-2015.3.14-2.fc22 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
USN-2617-2: NTFS-3G vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
Tavis Ormandy on Twitter: "a=/tmp/.$$;b=chmod\ u+sx;echo $b /bin/sh>$a;$b $a;a+=\;$a;mkdir -p $a;LIBMOUNT_MTAB=/etc/$0.$0rc _FUSE_COMMFD=0 fusermount $a #CVE-2015-3202" af854a3a-2127-422b-91ae-364da2661108 twitter.com
Filesystem in Userspace (FUSE) LIBMOUNT_MTAB Environment Variable Sanitization Flaw Lets Local Users Gain Elevated Privileges - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Fuse 2.9.3-15 - Local Privilege Escalation - Linux local Exploit af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com
Debian -- Security Information -- DSA-3266-1 fuse af854a3a-2127-422b-91ae-364da2661108 www.debian.org
USN-2617-1: FUSE vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
NTFS-3G: Privilege escalation (GLSA 201701-19) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
FUSE: incorrect filtering of environment variables leading to privilege escalation (GLSA 201603-04) — Gentoo Security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
Fuse Local Privilege Escalation ≈ Packet Storm af854a3a-2127-422b-91ae-364da2661108 packetstormsecurity.com
[SECURITY] Fedora 20 Update: ntfs-3g-2015.3.14-2.fc20 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
oss-security - CVE-2015-3202 fuse privilege escalation af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Exploit
Debian -- Security Information -- DSA-3268-1 ntfs-3g af854a3a-2127-422b-91ae-364da2661108 www.debian.org
USN-2617-3: NTFS-3G vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
openSUSE-SU-2015:0997-1: moderate: Security update for fuse af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
FUSE CVE-2015-3202 Local Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
openSUSE-SU-2015:1003-1: moderate: Security update for fuse af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
[SECURITY] Fedora 20 Update: fuse-2.9.4-1.fc20 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Making a demo exploit for CVE-2015-3202 on Ubuntu fit in a tweet. · GitHub af854a3a-2127-422b-91ae-364da2661108 gist.github.com Exploit
[SECURITY] Fedora 22 Update: fuse-2.9.4-1.fc22 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 21 Update: ntfs-3g-2015.3.14-2.fc21 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 21 Update: fuse-2.9.4-1.fc21 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 710449 Gentoo Linux NTFS-3G Privilege escalation Vulnerability (GLSA 201701-19)

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