canonical ubuntu-linux CVE-2023-4863 vulnerability in Canonical and Other Products
Published on September 12, 2023

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Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

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Known Exploited Vulnerability

This Google Chromium Heap-Based Buffer Overflow Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Google Chromium contains a heap-based buffer overflow vulnerability in WebP that allows a remote attacker to perform an out-of-bounds memory write via a crafted HTML page.

The following remediation steps are recommended / required by October 4, 2023: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Vulnerability Analysis

CVE-2023-4863 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 2.8 out of four. The potential impact of an exploit of this vulnerability is considered to be very high.

What is a Memory Corruption Vulnerability?

The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.

CVE-2023-4863 has been classified to as a Memory Corruption vulnerability or weakness.


Products Associated with CVE-2023-4863

You can be notified by stack.watch whenever vulnerabilities like CVE-2023-4863 are published in these products:

Canonical Ubuntu Linux
 
Google Chrome
 
Fedora Project Fedora
 
Debian Linux
 
Mozilla Firefox
 
Mozilla Thunderbird
 
Mozilla FireFox Extended Support Release (ESR)
 
Microsoft Edge Browser
 
Webmproject Libwebp
 

What versions are vulnerable to CVE-2023-4863?