CVE-2021-29628
First published: Fri May 28 2021(Updated: )
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.
Credit: secteam@freebsd.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeBSD FreeBSD | =12.2 | |
| FreeBSD FreeBSD | =12.2-beta1-p1 | |
| FreeBSD FreeBSD | =12.2-p1 | |
| FreeBSD FreeBSD | =12.2-p2 | |
| FreeBSD FreeBSD | =12.2-p3 | |
| FreeBSD FreeBSD | =12.2-p4 | |
| FreeBSD FreeBSD | =12.2-p5 | |
| FreeBSD FreeBSD | =12.2-p6 | |
| FreeBSD FreeBSD | =13.0 | |
| FreeBSD FreeBSD | =13.0-beta3-p1 | |
| FreeBSD FreeBSD | =13.0-rc3 | |
| FreeBSD FreeBSD | =13.0-rc4 | |
| FreeBSD FreeBSD | =13.0-rc5-p1 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-29628?
CVE-2021-29628 is a vulnerability in FreeBSD that allows a system call triggering a fault to disable SMAP protections.
How does CVE-2021-29628 affect FreeBSD?
CVE-2021-29628 affects FreeBSD versions 13.0-STABLE before n245764-876ffe28796c, 12.2-STABLE before r369857, 13.0-RELEASE before p1, and 12.2-RELEASE before p7.
What is the severity of CVE-2021-29628?
The severity of CVE-2021-29628 is high with a CVSS score of 7.5.
How do I fix CVE-2021-29628?
To fix CVE-2021-29628, upgrade to FreeBSD versions n245764-876ffe28796c, r369857, p1, or p7 depending on the affected release.
Where can I find more information about CVE-2021-29628?
You can find more information about CVE-2021-29628 in the advisory published by FreeBSD and NetApp.
- collector/nvd-index
- agent/severity
- agent/author
- agent/references
- agent/weakness
- agent/description
- agent/type
- agent/tags
- agent/event
- vendor/freebsd
- canonical/freebsd freebsd
- version/freebsd freebsd/12.2
- version/freebsd freebsd/12.2-beta1-p1
- version/freebsd freebsd/12.2-p1
- version/freebsd freebsd/12.2-p2
- version/freebsd freebsd/12.2-p3
- version/freebsd freebsd/12.2-p4
- version/freebsd freebsd/12.2-p5
- version/freebsd freebsd/12.2-p6
- version/freebsd freebsd/13.0
- version/freebsd freebsd/13.0-beta3-p1
- version/freebsd freebsd/13.0-rc3
- version/freebsd freebsd/13.0-rc4
- version/freebsd freebsd/13.0-rc5-p1