CVE-2017-11521 Explained : Impact and Mitigation

In July 2017, CVE-2017-11521 was published, highlighting a vulnerability in the reSIProcate version 1.10.2 that could lead to a denial of service attack due to excessive memory usage. Here's what you need to know about this CVE.

Understanding CVE-2017-11521

This section provides insights into the nature and impact of the CVE-2017-11521 vulnerability.

What is CVE-2017-11521?

The vulnerability lies in the 'parse' function within the 'Medium' class of the Session module in SdpContents.cxx of reSIProcate version 1.10.2. It can be exploited by attackers initiating multiple media connections, causing a denial of service attack through memory consumption.

The Impact of CVE-2017-11521

The vulnerability can result in a denial of service attack due to excessive memory usage when multiple media connections are established by an attacker.

Technical Details of CVE-2017-11521

Explore the technical aspects of CVE-2017-11521 to understand its implications.

Vulnerability Description

The 'parse' function in the 'Medium' class of the Session module in SdpContents.cxx in reSIProcate 1.10.2 allows remote attackers to trigger a denial of service attack by initiating numerous media connections.

Affected Systems and Versions

Affected Version: 1.10.2
Vendor: reSIProcate
Product: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by attackers initiating multiple media connections, leading to a denial of service attack through excessive memory consumption.

Mitigation and Prevention

Discover the steps to mitigate and prevent the exploitation of CVE-2017-11521.

Immediate Steps to Take

Update to a patched version of reSIProcate to mitigate the vulnerability.
Monitor and restrict the number of media connections to prevent excessive memory usage.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement network security measures to detect and block malicious connection attempts.

Patching and Updates

Apply security updates provided by reSIProcate to fix the vulnerability and enhance system security.