CVE-2021-29628

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.19%
Vendor Advisory FreeBSD.org
Affected: n/a FreeBSD
Published at:
Updated at:

References

Link Tags
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:11.smap.asc vendor advisory exploit
https://security.netapp.com/advisory/ntap-20210713-0002/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-29628?
CVE-2021-29628 has been scored as a high severity vulnerability.
How to fix CVE-2021-29628?
To fix CVE-2021-29628, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29628 being actively exploited in the wild?
It is possible that CVE-2021-29628 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-29628?
CVE-2021-29628 affects n/a FreeBSD.
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