CVE-2018-12911 Explained : Impact and Mitigation

WebkitGTK+ 2.20.3 has an off-by-one error in the get_simple_globs functions, leading to an out-of-bounds write in specific files.

Understanding CVE-2018-12911

An off-by-one error in WebKitGTK+ 2.20.3 results in an out-of-bounds write in certain functions.

What is CVE-2018-12911?

The vulnerability in WebKitGTK+ 2.20.3 allows for an out-of-bounds write due to an off-by-one error in the get_simple_globs functions within specific files.

The Impact of CVE-2018-12911

This vulnerability could be exploited by an attacker to execute arbitrary code or cause a denial of service by crashing the application.

Technical Details of CVE-2018-12911

WebkitGTK+ 2.20.3 is affected by an off-by-one error leading to an out-of-bounds write.

Vulnerability Description

The vulnerability exists in the get_simple_globs functions located in ThirdParty/xdgmime/src/xdgmimecache.c and ThirdParty/xdgmime/src/xdgmimeglob.c.

Affected Systems and Versions

Affected Version: WebKitGTK+ 2.20.3

Exploitation Mechanism

Attackers can exploit this vulnerability to trigger an out-of-bounds write, potentially leading to arbitrary code execution or denial of service.

Mitigation and Prevention

To address CVE-2018-12911, follow these steps:

Immediate Steps to Take

Apply the necessary security patches provided by the vendor.
Consider implementing appropriate security measures to prevent unauthorized access.

Long-Term Security Practices

Regularly update software and systems to mitigate known vulnerabilities.
Conduct security assessments and audits to identify and address potential risks.

Patching and Updates

Stay informed about security updates and patches released by WebKitGTK+.