Privilege escalation in edk2 - CVE-2017-5731
Published: December 22, 2018 / Updated: December 27, 2018
Vulnerability identifier: #VU16719
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-5731
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: TianoCore
Affected software:
edk2
edk2
Detailed vulnerability description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to an error when handling malicious input. A local attacker can supply specially crafted files in TianoCompress.c and gain elevated privileges.
How to mitigate CVE-2017-5731
Install update from vendor's website.