critical10.0
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 c…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Freebsd | Freebsd | from 13.0 before 13.3 Versions 13.3, 13.4, 14.0, 14.1 |