#VU7203 Integer overflow in OpenBSD

Vulnerability identifier: #VU7203

Vulnerability risk: Low

CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: N/A

CWE-ID: CWE-190

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
OpenBSD

Software vendor:
OpenBSD

The vulnerability allows a local attacker to trigger memory corruption on the target system.

The weakness exists due to integer overflow in the sti(4) display driver. A local attacker can run a specially crafted application to trigger memory corruption.

Install update from vendor's website.

• https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/027_sti.patch.sig
• https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/028_wsmux.patch.sig