[ CVE-2018-19323 · Published 21 Dec 2018 ]

GIGABYTE Multiple Products Privilege Escalation Vulnerability

Exploited · CISA KEV CVSS 9.8 EPSS 8%No fix listed yet

[ Why it matters ]Priority signals

Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-10-24
Known to be used in ransomware campaigns
Critical severity: CVSS 9.8

[ Description ]Official description

The GDrv low-level driver in GIGABYTE APP Center v1.05.21 and earlier, AORUS GRAPHICS ENGINE before 1.57, XTREME GAMING ENGINE before 1.26, and OC GURU II v2.08 exposes functionality to read and write Machine Specific Registers (MSRs).

CISA: The GPCIDrv and GDrv low-level drivers in GIGABYTE App Center, AORUS Graphics Engine, XTREME Gaming Engine, and OC GURU expose functionality to read and write arbitrary physical memory. This could be leveraged by a local attacker to elevate privileges.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 14 Nov 2022): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

seclists.org/fulldisclosure/2018/Dec/39ExploitMailing ListThird Party Advisory
www.securityfocus.com/bid/106252Broken LinkThird Party AdvisoryVDB Entry
www.gigabyte.com/Support/Security/1801Vendor Advisory
www.gigabyte.com/tw/Support/Utility/Graphics-CardProduct
www.secureauth.com/labs/advisories/gigabyte-drivers-elevation-privilege-vulnerabilitiesBroken LinkExploitThird Party Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource