Vulnerability Monitor

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CVE-2021-29628

In FreeBSD 13.0-STABLE before n245764-876ffe28796c, 12.2-STABLE before r369857, 13.0-RELEASE before p1, and 12.2-RELEASE before p7, a system call triggering a fault could cause SMAP protections to be disabled for the duration of the system call. This weakness could be combined with other kernel bugs to craft an exploit.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts integrity (unauthorized modifications), for affected systems. Impacting 1 product from freebsd organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2021-05-28T15:15:08.627

Last Modified

2024-11-21T06:01:31.680

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-863

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	freebsd	freebsd	12.2	Yes
Operating System	freebsd	freebsd	12.2	Yes
Operating System	freebsd	freebsd	12.2	Yes
Operating System	freebsd	freebsd	12.2	Yes
Operating System	freebsd	freebsd	12.2	Yes
Operating System	freebsd	freebsd	12.2	Yes
Operating System	freebsd	freebsd	12.2	Yes
Operating System	freebsd	freebsd	12.2	Yes
Operating System	freebsd	freebsd	13.0	Yes
Operating System	freebsd	freebsd	13.0	Yes
Operating System	freebsd	freebsd	13.0	Yes
Operating System	freebsd	freebsd	13.0	Yes
Operating System	freebsd	freebsd	13.0	Yes

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-21:11.smap.asc Exploit, Vendor Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20210713-0002/ Third Party Advisory ([email protected])
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:11.smap.asc Exploit, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20210713-0002/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For freebsd's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.