Use After Free in Freebsd

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 count of the object representing the mapping too many times, causing it to be fre…

Vulnerability class: Use-After-Free

EPSS: 0.007 (47.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

  • Freebsd — versions 13.3, 13.4, 14.0

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-43102?
CVE-2024-43102 is a critical-severity vulnerability in Freebsd, classified under Use After Free. CVSS score: 10.0/10. Published 2024-09-05.
How severe is CVE-2024-43102?
Critical severity. CVSS v3 base score is 10.0 out of 10.
Is CVE-2024-43102 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.