CVE-2024-43102

CRITICAL EPSS 47.8%
Published Sep 5, 20241y ago · Modified Jun 17, 20261w ago
10.0 CVSS 3.1
Critical
Find Similar
Published Sep 5, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
10.0
Exploitability
3.9
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
47.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-416 Use After Free Memory Safety
CWE-911

Affected Products 25

VendorProductVersionRange
freebsdfreebsd*≥13.0  –  <13.3
freebsdfreebsd13.3any
freebsdfreebsd13.3any
freebsdfreebsd13.3any
freebsdfreebsd13.3any
freebsdfreebsd13.3any
freebsdfreebsd13.3any
freebsdfreebsd13.4any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.0any
freebsdfreebsd14.1any
freebsdfreebsd14.1any
freebsdfreebsd14.1any
freebsdfreebsd14.1any

References 2

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.