CVEvulnerability

CVE-2024-43102

10.0 CRITICAL Published 2024-09-05 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2024-09-05
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-416, CWE-911

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 configurations

• freebsd freebsd (>= 13.0 < 13.3) • freebsd freebsd 13.3 • freebsd freebsd 13.4 • freebsd freebsd 14.0 • freebsd freebsd 14.1

Related

Weakness · CWE (2)

  • CWE-416 Use After Free weakness
  • CWE-911 Improper Update of Reference Count weakness

References