CVE-2024-0582
HIGH severity · CVSS 7.8 · Use-after-free
7.8CVSS HIGH
Summary
A memory leak flaw was found in the Linux kernel’s io_uring functionality in how a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. This flaw allows a local user to crash or potentially escalate their privileges on the system.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)13%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=2254050 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=2254050Patch
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c392cbecd8eca4c53f2bf508731257d9d0a21c2dPatch
- https://access.redhat.com/security/cve/CVE-2024-0582Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2504
- http://www.openwall.com/lists/oss-security/2024/04/24/3