Main Vulnerability Database Vulnerabilities #VU16720

Privilege escalation in edk2 - CVE-2017-5732

Published: December 27, 2018

Vulnerability identifier: #VU16720

CSH Severity: Low

CVSS v4: 5.4 [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]

CVE-ID: CVE-2017-5732

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

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 BaseUefiDecompressLib.c and gain elevated privileges.

Affected software

edk2
Opensuse

How to mitigate CVE-2017-5732

Install update from vendor's website.

External References

https://edk2-docs.gitbooks.io/security-advisory/content/edk-ii-tianocompress-bounds-checking-issues....

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