CVE-2024-43102 — Vulnerability intelligence

freebsd — freebsd

Published: 2024-09-05T04:54:52.452Z

CVSS

10

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

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.

Sources

• CVE-2024-43102
• Vendor Advisory
• Original advisory
• CVE-2024-43102