PT-2021-13448 · Google · Android Kernel

Published 2021-12-15 · Updated 2021-12-20 · CVE-2021-1047

Positive Technologies (AI Summary)

CVSS v2.0

2.1

Low

Base vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Android kernel

Description The issue is related to an integer overflow in the valid ipc dram addr function of cm access control.c, which could lead to a possible out of bounds read. This may result in local information disclosure, requiring System execution privileges for exploitation. No user interaction is needed for exploitation.

Recommendations For Android kernel, consider restricting access to sensitive information until a patch is available. As a temporary workaround, consider disabling the valid ipc dram addr function in cm access control.c to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2021-1047

Affected Products

Android Kernel

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-1047 · Security Note
• https://source.android.com/security/bulletin/pixel/2021-12-01 · Vendor Advisory
• https://t.me/cibsecurity/34072 · Telegram Post
• https://t.me/cvenotify/24650 · Telegram Post