Vulnerability in Kernel package: ip_gre: test csum_start instead of transport header
Summary
GSD-2022-1003514: ip_gre: test csum_start instead of transport header. Affects Kernel versions >= 87b34cd6485192777f632f92d592f2a71d8801a6, < fbeb8dfa8b87ef259eef0c89e39b53962a3cf604. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Kernel package is a fundamental component of the Linux operating system, responsible for managing the system's core functionality. It provides essential services such as process management, memory management, and device drivers. The ip_gre module within the Kernel package is used for encapsulating IP packets in GRE (Generic Routing Encapsulation) tunnels. This vulnerability specifically affects the ip_gre module and its handling of the csum_start field in the transport header.
Vulnerability Detail
The vulnerability in the ip_gre module arises from an incorrect check of the csum_start field in the transport header. This flaw can potentially lead to security issues, although the exact impact and likelihood of successful exploitation have not been proven. The vulnerability was introduced in version v5.10.68 of the Linux Kernel and has been fixed in version v5.10.122 by commit fbeb8dfa8b87ef259eef0c89e39b53962a3cf604.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
No workaround has been mentioned for this vulnerability.
Conclusion
In conclusion, the Kernel package's ip_gre module is vulnerable to a flaw in the handling of the csum_start field in the transport header. It is recommended to update the Linux Kernel package to version v5.10.122 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The exact impact of this vulnerability is not yet proven. However, it has the potential to be exploited for security breaches.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the Vulert Playground will provide real-time alerts for open-source vulnerabilities.
No known exploit for this vulnerability has been reported at this time.
The recommended mitigation is to update the Linux Kernel package to the fixed version v5.10.122 or later.
You can find more information about this vulnerability in the official Linux Kernel repository and the vulnerability database maintained by the Cloud Security Alliance.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
