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Vulnerability DatabaseCVE-2022-20521
CVE-2022-20521:
NixOS vulnerability analysis and mitigation
Overview
A vulnerability identified as CVE-2022-20521 was discovered in Android 13's Bluetooth implementation, specifically in the sdpu_find_most_specific_service_uuid function of sdp_utils.cc. The issue was disclosed in December 2022 and affects Android 13 operating system (Android Bulletin).
Technical details
The vulnerability stems from a missing null pointer check in the sdpu_find_most_specific_service_uuid function within sdp_utils.cc. It has been assigned a CVSS v3.1 base score of 5.0 (Medium), with a vector string of CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H. The vulnerability is classified as CWE-476 (NULL Pointer Dereference) (NVD Database).
Impact
If exploited, this vulnerability can lead to a crash of the Bluetooth service, resulting in a local denial of service condition. The impact is limited to availability, with no compromise to confidentiality or integrity (NVD Database).
Mitigation and workarounds
Google addressed this vulnerability in the December 2022 security update for Pixel devices. Users are advised to update their Android devices to the latest available security patch level (Android Bulletin).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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