Description
In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_misc
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:23.sendmsg.asc
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-20-949/
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200821-0005/
Scores
CVSS v3
7.0
EPSS
0.0072
EPSS Percentile
49.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-367
Status
published
Products (3)
freebsd/freebsd
11.3 (12 CPE variants)
freebsd/freebsd
11.4 (2 CPE variants)
freebsd/freebsd
12.1 (7 CPE variants)
Published
Aug 06, 2020
Tracked Since
Feb 18, 2026