CVE-2022-1011
HIGH severity · CVSS 7.8 · Use-after-free
7.8CVSS HIGH
Summary
A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (4)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git/commit/?h=for-nextAdvisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2064855Advisory
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlAdvisory
- https://www.debian.org/security/2022/dsa-5173Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlAdvisory