CVE-2017-8890 : What You Need to Know
Learn about CVE-2017-8890, a vulnerability in the Linux kernel up to version 4.10.15 that could lead to denial of service. Find out how to mitigate and prevent exploitation.
In the Linux kernel up to version 4.10.15, a vulnerability exists in the inet_csk_clone_lock function that can be exploited by attackers to trigger a double free scenario or cause denial of service through the accept system call.
Understanding CVE-2017-8890
This CVE entry describes a vulnerability in the Linux kernel that could lead to denial of service.
What is CVE-2017-8890?
The vulnerability in the Linux kernel up to version 4.10.15 allows attackers to exploit the accept system call, potentially resulting in a double free scenario or other unidentified impacts, leading to denial of service.
The Impact of CVE-2017-8890
The exploitation of this vulnerability could result in a denial of service condition on affected systems.
Technical Details of CVE-2017-8890
This section provides more technical insights into the CVE-2017-8890 vulnerability.
Vulnerability Description
The vulnerability is located in the inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c in the Linux kernel through version 4.10.15. Attackers can exploit this to cause a denial of service (double free) or potentially have other unspecified impacts by using the accept system call.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Up to Linux kernel version 4.10.15
Exploitation Mechanism
Attackers can exploit the vulnerability by misusing the accept system call, leading to a double free scenario or other potential impacts.
Mitigation and Prevention
Protecting systems from CVE-2017-8890 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply relevant patches provided by the Linux kernel maintainers.
- Monitor security advisories for updates and apply them promptly.
Long-Term Security Practices
- Regularly update the Linux kernel to the latest stable version.
- Implement network security measures to detect and prevent exploitation attempts.
Patching and Updates
Ensure timely patching of the Linux kernel to address the CVE-2017-8890 vulnerability.