Heap-based Buffer Overflow in vim/vim
Summary
CVE-2022-0407: Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2. Affects vim versions < 8.2.4619-r0. Fixed in 8.2.4619-r0. How to fix ↓
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Background
vim is a highly configurable text editor built to enable efficient text editing. It is widely used by developers and system administrators for various programming tasks. The vulnerability in question is a heap-based buffer overflow that exists in versions of vim prior to 8.2. This vulnerability can be exploited by an attacker to execute arbitrary code or cause a denial of service.
Vulnerability Detail
The heap-based buffer overflow vulnerability in vim/vim arises from a flaw in the handling of certain input data. By providing specially crafted input, an attacker can trigger a buffer overflow condition, leading to the corruption of adjacent memory and potential execution of arbitrary code. This vulnerability has a CVSS score of 7.8, indicating a high severity level. It poses a significant risk to systems running affected versions of vim.
How To Fix
Minimum fixed version
8.2.4619-r0
This is the first release that contains the fix.
sudo apk add --upgrade vimTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can consider disabling the functionality or feature that is associated with the vulnerable code. However, this may impact the usability or functionality of vim. It is strongly advised to apply the official fix by updating to the latest version of vim as soon as possible.
Conclusion
The heap-based buffer overflow vulnerability in vim/vim prior to version 8.2 poses a significant risk to systems running affected versions. It is crucial to update to the latest version of vim to address this vulnerability and prevent potential exploitation. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for vim →
FAQ
The vulnerability allows an attacker to execute arbitrary code or cause a denial of service on systems running vulnerable versions of vim.
No, only versions prior to 8.2 are affected by this heap-based buffer overflow vulnerability.
At the time of this report, there is no known public exploit for this vulnerability. However, it is crucial to apply the recommended fix to prevent potential exploitation.
Yes, this vulnerability can be exploited remotely by an attacker who can send specially crafted input to the vulnerable vim instance.
There is no evidence of active exploitation of this vulnerability at the time of this report. However, it is essential to apply the fix to mitigate the risk.
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