CVE-2017-13690 : What You Need to Know
Learn about CVE-2017-13690, a buffer over-read vulnerability in the IKEv2 parser of tcpdump versions before 4.9.2, impacting multiple functions. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A buffer over-read vulnerability in the print-isakmp.c file of the IKEv2 parser in tcpdump versions earlier than 4.9.2 has been identified, affecting multiple functions.
Understanding CVE-2017-13690
This CVE involves a specific vulnerability in the IKEv2 parser of tcpdump versions prior to 4.9.2.
What is CVE-2017-13690?
The CVE-2017-13690 vulnerability is a buffer over-read issue within the print-isakmp.c file of the IKEv2 parser in tcpdump versions before 4.9.2. This vulnerability impacts various functions within the affected versions.
The Impact of CVE-2017-13690
The vulnerability can potentially lead to information disclosure or denial of service if exploited by malicious actors. It poses a risk to the confidentiality and availability of systems utilizing the affected tcpdump versions.
Technical Details of CVE-2017-13690
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The buffer over-read vulnerability in the print-isakmp.c file of the IKEv2 parser in tcpdump versions earlier than 4.9.2 allows for unintended access to memory, potentially leading to information exposure or system crashes.
Affected Systems and Versions
- Affected System: tcpdump
- Affected Versions: Versions prior to 4.9.2
Exploitation Mechanism
The vulnerability can be exploited by crafting malicious network packets to trigger the buffer over-read condition, leading to potential exploitation of the affected functions.
Mitigation and Prevention
Protecting systems from CVE-2017-13690 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Update tcpdump to version 4.9.2 or later to mitigate the vulnerability.
- Monitor network traffic for any signs of exploitation.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Implement network segmentation and access controls to limit exposure to potential attacks.
Patching and Updates
- Stay informed about security advisories and updates from tcpdump and relevant vendors.
- Continuously monitor for new vulnerabilities and apply patches as soon as they are available.