Vulnerability in ethtool: strset: fix message length calculation
Summary
GSD-2021-1000984: ethtool: strset: fix message length calculation. Affects Kernel versions >= 71921690f9745fef60a2bad425f30adf8cdc9da0, < fb3a948143688e14e2cfd2a2812877923d0e5e92. No fix is published. How to fix ↓
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Background
The ethtool package is a command-line utility in the Linux Kernel ecosystem that allows users to query and control network device driver and hardware settings. It provides a means to retrieve information about network interfaces and configure various parameters. This vulnerability specifically affects the 'strset' function within ethtool, which is responsible for setting string attributes of network devices.
Vulnerability Detail
The vulnerability in ethtool's 'strset' function arises from an incorrect calculation of message length. This flaw can potentially lead to a buffer overflow or other memory corruption issues. An attacker could exploit this vulnerability by crafting a malicious message, which, when processed by ethtool, could result in arbitrary code execution or a denial of service. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
In conclusion, the ethtool package in the Linux Kernel is vulnerable to a flaw in the 'strset' function, which can result in memory corruption or arbitrary code execution. It is crucial to update to the fixed version of the Linux Kernel (v5.10.46 or later) to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
ethtool is a command-line utility in the Linux Kernel ecosystem that allows users to query and control network device driver and hardware settings. It provides a means to retrieve information about network interfaces and configure various parameters.
The impact of this vulnerability could potentially lead to a buffer overflow or other memory corruption issues. An attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service.
To fix this vulnerability, it is recommended to update to Linux Kernel version v5.10.46 or later. The fix for this issue was implemented in commit fb3a948143688e14e2cfd2a2812877923d0e5e92. Users can obtain the updated kernel version from the official Linux Kernel repository.
No specific workaround has been provided for this vulnerability.
For more details about this vulnerability, you can refer to the vulnerability database entry: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/GSD-2021-1000984.json
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