CVE-2024-43102
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.
Scoring
- CVSS base score
- 0
- EPSS probability
- 0.68%
- CWE
- CWE-416, CWE-911
- Published
- 2024-09-05
- Last modified
- 2026-03-13
Affected products
- FreeBSD FreeBSD
- FreeBSD FreeBSD
- FreeBSD FreeBSD
Weakness type
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