Heap-based buffer overflow in Exynos CP Chipset - CVE-2021-25479
Published: July 4, 2022
Vulnerability identifier: #VU64901
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-2021-25479
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local application to elevate privileges on the system.
The vulnerability exists due to a boundary error within the LTE RRC Reconfiguration. A malicious application can trigger a heap-based buffer overflow and execute arbitrary code with elevated privileges.
Affected software
Exynos CP Chipset
Pixel
Pixel
How to mitigate CVE-2021-25479
Install updates from vendor's website.
Exynos CP Chipset - update to SMR Oct-2021 Release 1
Pixel - update to 2022-03-05
Pixel - update to 2022-03-05