Critical Vulnerability in Linux Package: CVE-2022-50445 - Transport Mode Packet Re-injection Issue
Summary
DEBIAN-CVE-2022-50445: In the Linux kernel, the following vulnerability has been resolved: xfrm: Reinject transport-mode packets through workqueue The following warning is displayed when the tcp6-multi-diffip11 stress test case of the LTP test... Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The Linux package is a core component of the Debian operating system, providing essential functionalities for managing hardware and system resources. It is widely used in various distributions, including Debian 11, 12, 13, and 14. This package is crucial for system stability and performance, but it has been found to contain a significant vulnerability that affects its operation under specific conditions.
Vulnerability Detail
CVE-2022-50445 is a vulnerability in the Linux kernel that allows for the reinjection of transport-mode packets through a workqueue. This issue can lead to soft lockups, where the CPU becomes unresponsive for extended periods, potentially causing system instability and performance degradation. The vulnerability was identified during the tcp6-multi-diffip11 stress test case of the LTP test suite, which revealed that the CPU could become stuck, leading to critical failures in network operations.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can limit the use of transport-mode packets or adjust system configurations to minimize the risk of encountering the soft lockup issue until the package is updated.
Conclusion
CVE-2022-50445 represents a critical vulnerability in the Linux kernel that can lead to significant system performance issues. It is crucial for users to update their systems to the patched version to mitigate the risks associated with this vulnerability. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
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FAQ
CVE-2022-50445 is a vulnerability in the Linux kernel that affects the handling of transport-mode packets, leading to potential CPU soft lockups.
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The vulnerability can cause system instability, performance degradation, and unresponsiveness in network operations due to CPU soft lockups.
Yes, a patch is available in version 6.0.3-1 of the Linux package. Users should update their systems to this version or later.
As a temporary measure, you can limit the use of transport-mode packets or adjust system configurations to reduce the risk of encountering the issue.
References
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