CVE-2017-15398 : Security Advisory and Response

Google Chrome prior to version 62.0.3202.89 was affected by a stack buffer overflow vulnerability in the QUIC networking stack, allowing remote attackers to execute code on the system.

Understanding CVE-2017-15398

This CVE entry describes a critical vulnerability in Google Chrome that could be exploited by malicious actors to gain code execution on affected systems.

What is CVE-2017-15398?

Prior to version 62.0.3202.89, a stack buffer overflow in the QUIC networking stack of Google Chrome allowed remote attackers to execute arbitrary code by connecting to a malicious server.

The Impact of CVE-2017-15398

The vulnerability posed a severe risk as it could be leveraged by remote attackers to compromise the security of systems running the vulnerable versions of Google Chrome.

Technical Details of CVE-2017-15398

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in Google Chrome prior to 62.0.3202.89 was a stack buffer overflow in the QUIC networking stack, enabling remote attackers to achieve code execution through a malicious server.

Affected Systems and Versions

Product: Google Chrome prior to 62.0.3202.89
Versions: Google Chrome prior to 62.0.3202.89 (unknown)

Exploitation Mechanism

The vulnerability could be exploited by a remote attacker by establishing a connection to a specially crafted malicious server, triggering the stack buffer overflow.

Mitigation and Prevention

Protecting systems from CVE-2017-15398 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Google Chrome to version 62.0.3202.89 or newer to mitigate the vulnerability.
Avoid connecting to untrusted or suspicious servers to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Implement network security measures to detect and prevent malicious activities.

Patching and Updates

Google released a stable channel update addressing the vulnerability: Stable Channel Update for Desktop
Refer to vendor advisories such as DSA-4024, GLSA-201711-02, and RHSA-2017:3151 for additional guidance on patching.