Description
In FreeBSD 13.0-STABLE before n245050, 12.2-STABLE before r369525, 13.0-RC4 before p0, and 12.2-RELEASE before p6, listening socket accept filters implementing the accf_create callback incorrectly freed a process supplied argument string. Additional operations on the socket can lead to a double free or use after free.
Exploits (1)
References (2)
Core 2
Core References
Vendor Advisory x_refsource_misc
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:09.accept_filter.asc
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20210423-0007/
Scores
CVSS v3
7.8
EPSS
0.0105
EPSS Percentile
77.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-415
CWE-416
Status
published
Products (3)
freebsd/freebsd
12.2 (3 CPE variants)
freebsd/freebsd
13.0 beta1 (7 CPE variants)
freebsd/freebsd
12.0 - 12.2
Published
Apr 07, 2021
Tracked Since
Feb 18, 2026