CVE-2017-15116 Explained : Impact and Mitigation
Learn about CVE-2017-15116, a Linux kernel vulnerability that could lead to denial of service due to a null pointer dereference. Find out how to mitigate and prevent this security issue.
CVE-2017-15116 is a vulnerability in the Linux kernel that could lead to a denial of service due to a null pointer dereference in the rngapi_reset function.
Understanding CVE-2017-15116
What is CVE-2017-15116?
The function rngapi_reset in the file crypto/rng.c of the Linux kernel prior to version 4.2 is susceptible to exploitation by malicious actors, potentially resulting in a denial of service through a null pointer dereference.
The Impact of CVE-2017-15116
This vulnerability could allow attackers to cause a denial of service on affected systems, disrupting normal operations and potentially leading to system crashes.
Technical Details of CVE-2017-15116
Vulnerability Description
The vulnerability arises from a null pointer dereference in the rngapi_reset function within the Linux kernel, specifically before version 4.2.
Affected Systems and Versions
- Product: Linux kernel
- Versions affected: Linux kernel
Exploitation Mechanism
The vulnerability can be exploited by malicious individuals to trigger a denial of service condition by leveraging the null pointer dereference in the rngapi_reset function.
Mitigation and Prevention
Immediate Steps to Take
- Apply relevant patches and updates provided by the Linux kernel maintainers.
- Monitor security advisories for any further updates or patches related to this vulnerability.
Long-Term Security Practices
- Regularly update the Linux kernel to the latest stable version to mitigate known vulnerabilities.
- Implement proper access controls and security measures to reduce the risk of exploitation.
Patching and Updates
Ensure that the Linux kernel is regularly updated with the latest security patches to address vulnerabilities like CVE-2017-15116.