TI-2021-10336 Aliases CVE-2021-29628 GHSA-9m2j-xcq6-wjv7

Incorrect authorization in FreeBSD

LOW 35CWE-863Published 2021-05-28 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · High · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.

Summary

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.

Why it matters now

EPSS 0.01249 69th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	FreeBSD	FreeBSD 13.0-RELEASE before p1, 12.2-RELEASE before p7	—	No fix listed	CNA

FreeBSD Vendor— Affected FreeBSD 13.0-RELEASE before p1, 12.2-RELEASE before p7 Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPE	Versions	Role	Vendor
cpe:2.3:o:freebsd:freebsd:12.2:-::::::	12.2	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:beta1-p1::::::	12.2 beta1-p1	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p1::::::	12.2 p1	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p2::::::	12.2 p2	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p3::::::	12.2 p3	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p4::::::	12.2 p4	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p5::::::	12.2 p5	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p6::::::	12.2 p6	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:13.0:-::::::	13.0	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:13.0:beta3-p1::::::	13.0 beta3-p1	Vulnerable	FreeBSD

cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:* Versions 12.2 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:beta1-p1:*:*:*:*:*:* Versions 12.2 beta1-p1 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p1:*:*:*:*:*:* Versions 12.2 p1 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p2:*:*:*:*:*:* Versions 12.2 p2 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p3:*:*:*:*:*:* Versions 12.2 p3 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p4:*:*:*:*:*:* Versions 12.2 p4 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p5:*:*:*:*:*:* Versions 12.2 p5 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:12.2:p6:*:*:*:*:*:* Versions 12.2 p6 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:13.0:-:*:*:*:*:*:* Versions 13.0 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:13.0:beta3-p1:*:*:*:*:*:* Versions 13.0 beta3-p1 Vulnerable ·FreeBSD

Show 3 more CPE

CPE	Versions	Role	Vendor
cpe:2.3:o:freebsd:freebsd:13.0:rc3::::::	13.0 rc3	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:13.0:rc4::::::	13.0 rc4	Vulnerable	FreeBSD
cpe:2.3:o:freebsd:freebsd:13.0:rc5-p1::::::	13.0 rc5-p1	Vulnerable	FreeBSD

cpe:2.3:o:freebsd:freebsd:13.0:rc3:*:*:*:*:*:* Versions 13.0 rc3 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:13.0:rc4:*:*:*:*:*:* Versions 13.0 rc4 Vulnerable ·FreeBSD
cpe:2.3:o:freebsd:freebsd:13.0:rc5-p1:*:*:*:*:*:* Versions 13.0 rc5-p1 Vulnerable ·FreeBSD

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-29628
2026-10-03 Alias added: GHSA-9m2j-xcq6-wjv7

References

Exploit 1

https://security.FreeBSD.org/advisories/FreeBSD-SA-21:11.smap.asc

Advisory 1

https://security.netapp.com/advisory/ntap-20210713-0002/

TI-2011-04182 Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT… CVSS 2.0HIGH 10.0
TI-2007-03684 Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows… CVSS 3.1CRITICAL 9.8
TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0

See all 576 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences