CVE-2024-43102
high-risk
Published 2024-09-05
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.
Do I need to act?
~
1.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
10
CVSS 10.0/10
Critical
NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (2)
57
/ 100
high-risk
Severity
33/34 · Critical
Exploitability
3/34 · Minimal
Exposure
21/34 · High