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.
History

Tue, 17 Sep 2024 02:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 10.0, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}


Thu, 05 Sep 2024 21:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:freebsd:freebsd:13.3:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.3:p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.3:p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.3:p3:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.3:p4:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.3:p5:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:13.4:beta3:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:beta5:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:p3:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:p4:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:p5:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:p6:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:p7:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:p8:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:p9:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:rc3:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.0:rc4-p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.1:-:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.1:p1:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.1:p2:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:14.1:p3:*:*:*:*:*:*

Thu, 05 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Freebsd
Freebsd freebsd
CPEs cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
Vendors & Products Freebsd
Freebsd freebsd
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 05 Sep 2024 05:00:00 +0000

Type Values Removed Values Added
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.
Title umtx Kernel panic or Use-After-Free
Weaknesses CWE-416
CWE-911
References

cve-icon MITRE

Status: PUBLISHED

Assigner: freebsd

Published: 2024-09-05T04:54:52.452Z

Updated: 2024-09-16T21:02:44.154Z

Reserved: 2024-08-27T16:30:55.979Z

Link: CVE-2024-43102

cve-icon Vulnrichment

Updated: 2024-09-16T21:02:44.154Z

cve-icon NVD

Status : Analyzed

Published: 2024-09-05T05:15:13.677

Modified: 2024-09-05T21:23:40.503

Link: CVE-2024-43102

cve-icon Redhat

No data.