net: Do Not Keep the DST Cache When Uncloning an SKB DST and Its Metadata
Summary
GSD-2022-1000374: net: do not keep the dst cache when uncloning an skb dst and its metadata. Affects Kernel versions >= d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8, < 2e9fd2d0f69e4cc82a9a497bb14c1d70e75cc430. No fix is published. How to fix ↓
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Background
The Linux Kernel is an open-source monolithic Unix-like computer operating system kernel. It provides the essential services to enable programs to run on the computer hardware. The kernel manages the system's resources, such as the central processing unit (CPU), memory, and input/output devices. The vulnerability affects the networking subsystem of the Linux Kernel.
Vulnerability Detail
The vulnerability in the Linux Kernel's networking subsystem allows an attacker to keep the destination (dst) cache when uncloning a socket buffer (skb) dst and its metadata. This can lead to potential security vulnerabilities, although the actual impact and attack plausibility have not been proven. The vulnerability was introduced in version v4.6 of the Linux Kernel and has been fixed in version v5.10.101.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The vulnerability in the Linux Kernel's networking subsystem can potentially lead to security vulnerabilities. It is recommended to update the Linux Kernel to version v5.10.101 or later to fix the vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The impact of this vulnerability is currently unknown as the actual attack plausibility has not been proven.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and the Vulert Playground will analyze it for open-source vulnerabilities, including this one.
Yes, a patch has been released in version v5.10.101 of the Linux Kernel. It is recommended to update to this version or later to fix the vulnerability.
No specific workaround has been mentioned for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
You can find more information about this vulnerability in the GSD-2022-1000374.json file in the GSD database (https://github.com/cloudsecurityalliance/gsd-database).
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