PT-2021-13414 · Google · Android

Published 2021-12-15 · Updated 2021-12-20 · CVE-2021-1009

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Android versions Android-12

Description The issue is related to side channel information disclosure in the PackageManagerService.java, specifically in the setApplicationCategoryHint function. This could allow an attacker to determine whether an app is installed without requiring query permissions, potentially leading to local information disclosure. No additional execution privileges are needed, and user interaction is not required for exploitation.

Recommendations For Android version Android-12, consider restricting access to the PackageManagerService.java until a patch is available. As a temporary workaround, avoid using the setApplicationCategoryHint function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Side Channel Attack

Weakness Enumeration

CWE-203

Related Identifiers

CVE-2021-1009

Affected Products

Android

References · 3

• https://source.android.com/security/bulletin/pixel/2021-12-01 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1009 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1009 · Security Note