CVE-2019-19520

Impact

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.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html
• http://seclists.org/fulldisclosure/2019/Dec/14
• http://www.openwall.com/lists/oss-security/2019/12/04/5
• http://www.openwall.com/lists/oss-security/2019/12/04/6
• https://seclists.org/bugtraq/2019/Dec/8
• https://www.openbsd.org/errata66.html
• https://www.openwall.com/lists/oss-security/2019/12/04/5
• http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html
• http://seclists.org/fulldisclosure/2019/Dec/14
• http://www.openwall.com/lists/oss-security/2019/12/04/5
• http://www.openwall.com/lists/oss-security/2019/12/04/6
• https://seclists.org/bugtraq/2019/Dec/8
• https://www.openbsd.org/errata66.html
• https://www.openwall.com/lists/oss-security/2019/12/04/5