Vulnerability in Kernel package: tty: goldfish: Use tty_port_destroy() to destroy port
Summary
GSD-2022-1003301: tty: goldfish: Use tty_port_destroy() to destroy port. Affects Kernel versions >= 666b7793d4bfa9f150b5c2007ab48c755ddc53ca, < da64f419d7f78272bfe40dde1262602d4ff6b32c. No fix is published. How to fix ↓
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Background
The Kernel package is a crucial component of the Linux operating system, responsible for managing the system's core functionality. It provides an interface between the hardware and software layers, allowing applications to communicate with the underlying hardware. The tty subsystem within the Kernel package handles terminal devices, enabling input and output operations. One specific module, goldfish, is used for virtual terminal emulation. However, a vulnerability has been identified in the goldfish module that can potentially lead to security issues.
Vulnerability Detail
The vulnerability in the goldfish module of the Kernel package arises from the improper destruction of the tty port. Instead of using the appropriate function, tty_port_destroy(), to destroy the port, an incorrect method is employed. This vulnerability was introduced in version v3.9 of the Linux Kernel and has been present until version v5.15.47. The impact and attack plausibility of this vulnerability have not been proven yet. However, it is crucial to address this issue to ensure the security and stability of the system.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As this vulnerability can be resolved by updating the Kernel package, there is no specific workaround provided. It is advisable to follow the recommended fix and update the package to the latest version.
Conclusion
The vulnerability in the goldfish module of the Kernel package can be addressed by updating the package to version v5.15.47 or later. This update ensures the proper destruction of the tty port using the tty_port_destroy() function. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel package is a critical component of the Linux operating system, responsible for managing the system's core functionality and acting as an interface between hardware and software layers.
The goldfish module is a part of the tty subsystem in the Kernel package, specifically used for virtual terminal emulation.
The impact of this vulnerability is yet to be proven. However, it has the potential to lead to security issues if exploited by malicious actors.
The recommended fix is to update the Linux Kernel package to version v5.15.47 or later, which includes the necessary fix for this vulnerability.
No specific workaround is provided for this vulnerability. It is advised to update the Kernel package to the latest version.
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