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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2024-43102

umtx Kernel panic or Use-After-Free

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Status
Published
Published
Updated
Assigning organization
freebsd

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

FreeBSD FreeBSD

Default version status: unknown

  • 14.1-RELEASE to < p4affected
  • 14.0-RELEASE to < p10affected
  • 13.3-RELEASE to < p6affected

References