CVE-2018-1000168 : Security Advisory and Response
Learn about CVE-2018-1000168, a vulnerability in nghttp2 versions 1.10.0 to 1.31.0 that could lead to denial of service attacks. Find mitigation steps and update recommendations here.
This CVE involves a vulnerability in nghttp2 versions 1.10.0 to 1.31.0 related to ALTSVC frame handling, potentially leading to a denial of service attack.
Understanding CVE-2018-1000168
This CVE pertains to a specific vulnerability in nghttp2 versions 1.10.0 to 1.31.0 that could be exploited through a network client, resulting in a denial of service.
What is CVE-2018-1000168?
The vulnerability in nghttp2 versions 1.10.0 to 1.31.0 is due to improper input validation in the handling of ALTSVC frames. This flaw could trigger a segmentation fault, ultimately causing a denial of service.
The Impact of CVE-2018-1000168
The vulnerability could allow an attacker to exploit the ALTSVC frame handling in nghttp2, potentially leading to a denial of service attack. The issue has been classified as CWE-20, indicating improper input validation.
Technical Details of CVE-2018-1000168
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in nghttp2 versions 1.10.0 to 1.31.0 is related to improper input validation in the handling of ALTSVC frames, potentially resulting in a segmentation fault and denial of service.
Affected Systems and Versions
- Affected versions: nghttp2 versions 1.10.0 to 1.31.0
Exploitation Mechanism
- The vulnerability can be exploited through a network client, allowing an attacker to trigger a denial of service attack.
Mitigation and Prevention
To address and prevent the exploitation of CVE-2018-1000168, consider the following steps:
Immediate Steps to Take
- Update nghttp2 to version 1.31.1 or later to mitigate the vulnerability.
- Monitor vendor advisories and security sources for any patches or updates.
Long-Term Security Practices
- Regularly update software and apply security patches promptly.
- Implement network security measures to detect and prevent potential attacks.
Patching and Updates
- Ensure that nghttp2 is regularly updated to the latest version to address known vulnerabilities and enhance security.