PT-2021-20327 · Fuse · Fuse

Published 2021-06-03 · Updated 2021-06-09 · CVE-2021-33805

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions: FUSE versions prior to 2.9.8

Description: The issue allows local attackers to specify the allow other option, even if it is forbidden in /etc/fuse.conf, leading to exposure of FUSE filesystems to other users. This issue only affects systems with SELinux active.

Recommendations: For versions prior to 2.9.8, update to version 2.9.8 or later to resolve the issue. As a temporary workaround, consider restricting access to the FUSE filesystems to minimize the risk of exploitation.

Related Identifiers

CVE-2021-33805

Affected Products

Fuse

References · 8

• https://ubuntu.com/security/CVE-2021-33805 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33805 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-33805 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-33805 · Security Note
• https://github.com/libfuse/libfuse/releases/tag/fuse-3.2.5 · Note
• https://github.com/libfuse/libfuse/releases/tag/fuse-2.9.8 · Note
• https://t.me/cvenotify/15499 · Telegram Post
• https://t.me/cvenotify/15516 · Telegram Post