vulnerability
FreeBSD: VID-7e079ce2-6b51-11ef-9a62-002590c1f29c (CVE-2024-43102): FreeBSD -- umtx Kernel panic or Use-After-Free
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 10 | (AV:N/AC:L/Au:N/C:C/I:C/A:C) | Sep 5, 2024 | Sep 6, 2024 | Jun 15, 2026 |
Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Sep 5, 2024
Added
Sep 6, 2024
Modified
Jun 15, 2026
Description
Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of UMTX_OP_SHM can lead to decreasing the reference count of the object representing the mapping too many times, causing it to be freed too early.
A malicious code exercizing the UMTX_SHM_DESTROY sub-request in parallel can panic the kernel or enable further Use-After-Free attacks, potentially including code execution or Capsicum sandbox escape.
A malicious code exercizing the UMTX_SHM_DESTROY sub-request in parallel can panic the kernel or enable further Use-After-Free attacks, potentially including code execution or Capsicum sandbox escape.
Solutions
freebsd-upgrade-base-14_1-release-p4freebsd-upgrade-base-14_0-release-p10freebsd-upgrade-base-13_3-release-p6
Rapid7 Labs
2026 Global Threat Landscape Report
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