VulnerabilityModified

CVE-2019-19520

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.

HIGH 7.8EPSS 1.36%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.36% probability · 70th percentile
CISA KEV: Not listed
Weakness: CWE-863
Affected: openbsd/openbsd
Source: cve@mitre.org

References

http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.htmlThird Party Advisory
http://seclists.org/fulldisclosure/2019/Dec/14Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/12/04/5Exploit, Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/12/04/6Mailing List
https://seclists.org/bugtraq/2019/Dec/8Exploit, Mailing List, Third Party Advisory
https://www.openbsd.org/errata66.htmlVendor Advisory
https://www.openwall.com/lists/oss-security/2019/12/04/5Exploit, Mailing List, Third Party Advisory
http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.htmlThird Party Advisory
http://seclists.org/fulldisclosure/2019/Dec/14Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/12/04/5Exploit, Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/12/04/6Mailing List
https://seclists.org/bugtraq/2019/Dec/8Exploit, Mailing List, Third Party Advisory
https://www.openbsd.org/errata66.htmlVendor Advisory
https://www.openwall.com/lists/oss-security/2019/12/04/5Exploit, Mailing List, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.