01 Record
CVE-2019-19519
In OpenBSD 6.6, local users can use the su -L option to achieve any login class (often excluding root) because there is a logic error in the main function in su/su.c.
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 Description
In OpenBSD 6.6, local users can use the su -L option to achieve any login class (often excluding root) because there is a logic error in the main function in su/su.c.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.39% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 33.3% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-12-04 23:34Z6 YR AGO
- Last updated
- 2024-08-05 02:16Z2 YR AGO
- Reserved
- 2019-12-03
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-287Improper AuthenticationClass
- Data version
- 5.1
- Document digest
- 59cf3a382b394f4f4b468535c96922142d2bca1b8f7fff493da66ea45d5760d4
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.openwall.comhttps://www.openwall.com/lists/oss-security/2019/12/04/5
- www.openbsd.orghttps://www.openbsd.org/errata66.html
- github.comhttps://github.com/openbsd/src/blob/2dfc98f42e117c7605b52b5020b630d98601dc22/usr.bin/su/su.c#L210-L211
- www.openwall.com[oss-security] 20191204 Authentication vulnerabilities in OpenBSDhttp://www.openwall.com/lists/oss-security/2019/12/04/5
- seclists.org20191205 Authentication vulnerabilities in OpenBSDhttps://seclists.org/bugtraq/2019/Dec/8
- packetstormsecurity.comhttp://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html
- seclists.org20191206 Authentication vulnerabilities in OpenBSDhttp://seclists.org/fulldisclosure/2019/Dec/14