Description
An issue was discovered in slicer69 doas before 6.2 on certain platforms other than OpenBSD. A setusercontext(3) call with flags to change the UID, primary GID, and secondary GIDs was replaced (on certain platforms: Linux and possibly NetBSD) with a single setuid(2) call. This resulted in neither changing the group id nor initializing secondary group ids.
References (3)
Core 3
Core References
Patch, Release Notes, Third Party Advisory x_refsource_misc
https://github.com/slicer69/doas/compare/6.1p1...6.2
Patch, Third Party Advisory x_refsource_misc
https://github.com/slicer69/doas/commit/6cf0236184ff6304bf5e267ccf7ef02874069697
Exploit, Third Party Advisory x_refsource_misc
https://github.com/slicer69/doas/pull/23
Scores
CVSS v3
8.8
EPSS
0.0055
EPSS Percentile
67.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-269
Status
published
Products (1)
doas_project/doas
< 6.2
Published
Oct 18, 2019
Tracked Since
Feb 18, 2026