CVE-2019-15901

Name: CVE-2019-15901
Creator: NVD / NIST
Published: 2019-10-18T16:15:10.32+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.57%

Last modified Jun 17, 2026

CVE-2019-15901 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 2.57% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.57%

83.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Doas Project	Doas	< 6.2

References

https://github.com/slicer69/doas/commit/6cf0236184ff6304bf5e267ccf7ef02874069697Patch, Third Party Advisory
https://github.com/slicer69/doas/compare/6.1p1...6.2Patch, Release Notes, Third Party Advisory
https://github.com/slicer69/doas/pull/23Exploit, Third Party Advisory
https://github.com/slicer69/doas/commit/6cf0236184ff6304bf5e267ccf7ef02874069697Patch, Third Party Advisory
https://github.com/slicer69/doas/compare/6.1p1...6.2Patch, Release Notes, Third Party Advisory
https://github.com/slicer69/doas/pull/23Exploit, Third Party Advisory

Timeline

Published: Oct 18, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-15901?

How severe is CVE-2019-15901?

CVE-2019-15901 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.57% probability of exploitation in the next 30 days.

How do I fix CVE-2019-15901?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-15901?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST