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Vulnerability DatabaseCVE-2023-21291

CVE-2023-21291: 
NixOS vulnerability analysis and mitigation

Overview

In visitUris of Notification.java within Android's framework, there exists a vulnerability (CVE-2023-21291) due to a missing permission check. This security flaw affects Android versions 11.0, 12.0, 12.1, and 13.0. The vulnerability was discovered and patched in October 2023 (Android Bulletin, Android Source).

Technical details

The vulnerability exists in the visitUris function of Notification.java, where a missing permission check could allow unauthorized access to image contents from another user. The severity of this vulnerability is rated as MEDIUM with a CVSS v3.1 base score of 5.5 (Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). The vulnerability is classified under CWE-862 (Missing Authorization) (NVD).

Impact

The vulnerability could lead to local information disclosure, potentially allowing an attacker to access image contents belonging to another user. The attack requires user execution privileges but does not need user interaction for exploitation (CVE).

Mitigation and workarounds

Google has addressed this vulnerability through a patch that verifies URI permissions for notification shortcutIcon. The fix was implemented in the Android security update released in October 2023 (Android Source).

Additional resources

Source: This report was generated using AI

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