CVE-2019-15900
The result was that, instead of reporting that the supplied username or group name did not exist, it would execute the command as root.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in slicer69 doas before 6.2 on certain platforms other than OpenBSD. On platforms without strtonum(3), sscanf was used without checking for error cases. Instead, the uninitialized variable errstr was checked and in some cases returned success even if sscanf failed. The result was that, instead of reporting that the supplied username or group name did not exist, it would execute the command as root.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.11% probability · 82th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-252, CWE-754, CWE-863, CWE-908
- Affected
- doas project/doas
- Source
- cve@mitre.org
EPSS 2.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/slicer69/doas/commit/2f83222829448e5bc4c9391d607ec265a1e06531Patch
- https://github.com/slicer69/doas/compare/6.1p1...6.2Release Notes
- https://github.com/slicer69/doas/commit/2f83222829448e5bc4c9391d607ec265a1e06531Patch
- https://github.com/slicer69/doas/compare/6.1p1...6.2Release Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.