CVE-2017-11410 : What You Need to Know
Learn about CVE-2017-11410 affecting Wireshark versions 2.0.13 and 2.2.x through 2.2.7. Discover the impact, technical details, and mitigation steps for this vulnerability.
Wireshark through versions 2.0.13 and 2.2.x up to 2.2.7 was found to have a vulnerability in the WBXML dissector that could lead to an infinite loop. This issue could be triggered by injecting a specific packet or using a capture file with incorrect formatting. The problem was addressed by implementing validation of relationships between indexes and lengths in the 'epan/dissectors/packet-wbxml.c' file. It's crucial to note that this vulnerability stemmed from an incomplete fix for CVE-2017-7702.
Understanding CVE-2017-11410
This CVE entry pertains to a specific vulnerability in Wireshark versions 2.0.13 and 2.2.x through 2.2.7 related to the WBXML dissector.
What is CVE-2017-11410?
The CVE-2017-11410 vulnerability in Wireshark allowed the WBXML dissector to enter an endless loop, which could be exploited by injecting a particular packet or using a malformed capture file.
The Impact of CVE-2017-11410
The vulnerability could result in a denial of service (DoS) condition due to the software getting stuck in an infinite loop, impacting the availability of the affected system.
Technical Details of CVE-2017-11410
Wireshark's CVE-2017-11410 vulnerability can be further understood through its technical aspects.
Vulnerability Description
The issue in Wireshark versions 2.0.13 and 2.2.x through 2.2.7 allowed the WBXML dissector to enter an infinite loop, triggered by specific packet injections or malformed capture files.
Affected Systems and Versions
- Wireshark versions 2.0.13 and 2.2.x through 2.2.7
Exploitation Mechanism
- Injection of a specific packet
- Usage of a capture file with incorrect formatting
Mitigation and Prevention
To address and prevent the CVE-2017-11410 vulnerability, certain steps can be taken.
Immediate Steps to Take
- Update Wireshark to the latest patched version
- Avoid injecting suspicious packets into Wireshark
- Ensure capture files adhere to correct formatting
Long-Term Security Practices
- Regularly update and patch Wireshark and other software
- Implement network segmentation to contain potential vulnerabilities
Patching and Updates
- Apply official patches provided by Wireshark to fix the vulnerability