Main Vulnerability Database Vulnerabilities #VU86259

Out-of-bounds write in Chrome OS - CVE-2024-25556

Published: February 8, 2024

Vulnerability identifier: #VU86259

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-25556

CWE-ID: CWE-787

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a boundary error in PhysmemCreateNewDmaBufBackedPMR. A local application can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Affected software

Chrome OS

How to mitigate CVE-2024-25556

Install updates from vendor's website.

Chrome OS - update to 121.0.6167.159

External References

https://chromereleases.googleblog.com/2024/02/stable-channel-update-for-chromeos.html
https://bugs.chromium.org/p/chromium/issues/detail?id=1466464

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