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…

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.

Scores

EPSS (exploitation in 30 days)

1.0% · top 37% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.6.

Weakness

• n/a
• CWE-264 (opens in a new tab)All about CWE-264 and its CVEs

Affected products

• n/a

  • affected n/a

References (22)

• DSA-3268 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• USN-2617-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• FEDORA-2015-8771 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• FEDORA-2015-8782 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• FEDORA-2015-8751 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• 1032386 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• https://gist.github.com/taviso/ecb70eb12d461dd85cba (opens in a new tab)x_refsource_MISCx_transferred
• 74765 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• FEDORA-2015-8773 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• openSUSE-SU-2015:1003 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• DSA-3266 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• GLSA-201603-04 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• USN-2617-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• FEDORA-2015-8777 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• FEDORA-2015-8756 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• GLSA-201701-19 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
• [oss-security] 20150521 CVE-2015-3202 fuse privilege escalation (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• openSUSE-SU-2015:0997 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• http://packetstormsecurity.com/files/132021/Fuse-Local-Privilege-Escalation.html (opens in a new tab)x_refsource_MISCx_transferred
• https://twitter.com/taviso/status/601370527437967360 (opens in a new tab)x_refsource_MISCx_transferred
• 37089 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
• USN-2617-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2015-3202](https://trackcve.app/badge/CVE-2015-3202.svg)](https://trackcve.app/cve/CVE-2015-3202)

Record last updated 6 Aug 2024, 05:39 UTC.