Vulnerability · Published May 28, 2021 · Assigned by freebsd

CVE-2021-29628

High 7.5

In plain English

A high-severity security flaw in FreeBSD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 70% of all known vulnerabilities).

Severity (CVSS NVD)7.5High

Exploit odds (30 days)1.2%top 30.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	FreeBSD	FreeBSD 13.0-RELEASE before p1, 12.2-RELEASE before p7

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-21:11.smap.asc x_refsource_MISC
https://security.netapp.com/advisory/ntap-20210713-0002/ x_refsource_CONFIRM