What’s Vulnerable › Vulnerabilities

CVE-2022-41973

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-10-29 · updated 2026-06-17
• Weakness: CWE-59

Description

multipath-tools 0.7.7 through 0.9.x before 0.9.2 allows local users to obtain root access, as exploited in conjunction with CVE-2022-41974. Local users able to access /dev/shm can change symlinks in multipathd due to incorrect symlink handling, which could lead to controlled file writes outside of the /dev/shm directory. This could be used indirectly for local privilege escalation to root.

Affected products

• Debian Linux: 10.0
• Fedoraproject Fedora: 36
• Opensvc Multipath-Tools: from 0.7.7 before 0.9.2 — fixed in 0.9.2

How to fix

Upgrade to a fixed version: Opensvc Multipath-Tools 0.9.2. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/169611/Leeloo-Multipath-Authorization-Bypass-Symlink-Attack.html
• http://packetstormsecurity.com/files/170176/snap-confine-must_mkdir_and_open_with_perms-Race-Condition.html
• http://seclists.org/fulldisclosure/2022/Dec/4
• http://seclists.org/fulldisclosure/2022/Oct/25
• http://www.openwall.com/lists/oss-security/2022/10/24/2
• http://www.openwall.com/lists/oss-security/2022/11/30/2
• https://bugzilla.suse.com/show_bug.cgi?id=1202739
• https://github.com/opensvc/multipath-tools/releases/tag/0.9.2
• https://lists.debian.org/debian-lts-announce/2022/12/msg00037.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QIGZM5NOOMFDCITOLQEJNNX5SCRQLQVV/
• https://security.gentoo.org/glsa/202311-06
• https://www.debian.org/security/2023/dsa-5366

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