Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | >= 13.0, < 13.3 |
Related Weaknesses (CWE)
References
- https://security.freebsd.org/advisories/FreeBSD-SA-24:14.umtx.ascVendor Advisory
- https://security.netapp.com/advisory/ntap-20240916-0001/
FAQ
What is CVE-2024-43102?
CVE-2024-43102 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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 mappi...
How severe is CVE-2024-43102?
CVE-2024-43102 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2024-43102?
Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.