Vulnerability Description
xlock in OpenBSD 6.6 allows local users to gain the privileges of the auth group by providing a LIBGL_DRIVERS_PATH environment variable, because xenocara/lib/mesa/src/loader/loader.c mishandles dlopen.
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openbsd | 6.6 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-AutThird Party Advisory
- http://seclists.org/fulldisclosure/2019/Dec/14Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/12/04/5ExploitMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/12/04/6Mailing List
- https://seclists.org/bugtraq/2019/Dec/8ExploitMailing ListThird Party Advisory
- https://www.openbsd.org/errata66.htmlVendor Advisory
- https://www.openwall.com/lists/oss-security/2019/12/04/5ExploitMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-AutThird Party Advisory
- http://seclists.org/fulldisclosure/2019/Dec/14Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/12/04/5ExploitMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/12/04/6Mailing List
- https://seclists.org/bugtraq/2019/Dec/8ExploitMailing ListThird Party Advisory
- https://www.openbsd.org/errata66.htmlVendor Advisory
- https://www.openwall.com/lists/oss-security/2019/12/04/5ExploitMailing ListThird Party Advisory
FAQ
What is CVE-2019-19520?
CVE-2019-19520 is a vulnerability with a CVSS score of 7.8 (HIGH). xlock in OpenBSD 6.6 allows local users to gain the privileges of the auth group by providing a LIBGL_DRIVERS_PATH environment variable, because xenocara/lib/mesa/src/loader/loader.c mishandles dlopen...
How severe is CVE-2019-19520?
CVE-2019-19520 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-19520?
Check the references section above for vendor advisories and patch information. Affected products include: Openbsd Openbsd.