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.
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This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 2.2%, top 15% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
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.
December 5, 2019
November 21, 2024
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Script that automates the process of escalating privileges on openbsd system (CVE-2019-19520) by exploiting the xlock binary and againing it's sgid and escalating to the root user by (CVE-2019-19522) exploiting the privileges of auth group and adding keys to the Skey or Yubikey
Open source ↗See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-19520
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CWE-863