CVE-2021-29628 — HIGH (7.5)

Vulnerability 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 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Freebsd	Freebsd	12.2

Related Weaknesses (CWE)

CWE-863

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-21:11.smap.ascExploitVendor Advisory
https://security.netapp.com/advisory/ntap-20210713-0002/Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:11.smap.ascExploitVendor Advisory
https://security.netapp.com/advisory/ntap-20210713-0002/Third Party Advisory

FAQ

What is CVE-2021-29628?

CVE-2021-29628 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...

How severe is CVE-2021-29628?

CVE-2021-29628 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-29628?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.