High severity · published May 28, 2021
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…
7.5
CVSS
1.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
12.2; 12.2; 12.2; 12.2; 12.2; 12.2; +7 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-29628
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-29628
Exploit
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:11.smap.asc
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210713-0002/
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