CVE-2022-2853: 
vulnerability analysis and mitigation

A heap buffer overflow vulnerability (CVE-2022-2853) was discovered in the Downloads component of Google Chrome on Android prior to version 104.0.5112.101. The vulnerability was reported by Sergei Glazunov of Google Project Zero on August 4, 2022 (Chrome Releases).

The vulnerability is classified as a high-severity heap buffer overflow that affects the Downloads functionality in Google Chrome. The issue could be exploited by a remote attacker who has already compromised the renderer process, potentially leading to heap corruption through a crafted HTML page (NVD).

If successfully exploited, this vulnerability could allow an attacker who has already compromised the renderer process to potentially exploit heap corruption, which could lead to arbitrary code execution within the context of the browser (CVE Mitre).

The vulnerability requires the attacker to first compromise the renderer process before being able to exploit the heap buffer overflow through a specially crafted HTML page. The attack complexity is increased by this prerequisite condition (NVD).

The vulnerability was patched in Google Chrome version 104.0.5112.101 for Android. Users are advised to update their Chrome browsers to this version or later to protect against this vulnerability (Chrome Releases).