Critical Integer Overflow Vulnerability in Vim Package
Summary
ALPINE-CVE-2017-6350: An integer overflow at an unserialize_uep memory allocation site would occur for vim before patch 8.0.0378, if it does not properly validate values for tree length when reading a corrupted undo file, which may lead to re... Affects vim versions < 8.0.1521-r0. Fixed in 8.0.1521-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 its powerful features and extensibility. However, a critical vulnerability has been identified in Vim versions prior to 8.0.1521-r0, which could lead to severe security risks if exploited.
Vulnerability Detail
An integer overflow occurs at an unserialize_uep memory allocation site in Vim before patch 8.0.0378. This vulnerability arises when the software fails to properly validate values for tree length while reading a corrupted undo file. If exploited, it may lead to buffer overflows, potentially allowing attackers to execute arbitrary code or crash the application, thereby compromising system integrity.
How To Fix
Minimum fixed version
8.0.1521-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 are advised to avoid opening potentially corrupted undo files until the package can be updated. Additionally, consider using alternative text editors that do not exhibit this vulnerability.
Conclusion
The integer overflow vulnerability in the Vim package poses a critical risk to users running affected versions. It is essential to update to the patched version to mitigate potential security threats. Users should also consider using Vulert for ongoing monitoring of vulnerabilities in their software.
See every vulnerability recorded for vim →
FAQ
The CVSS score of this vulnerability is 9.8, indicating a critical level of severity.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
Exploitation of this vulnerability could lead to buffer overflows, allowing attackers to execute arbitrary code or crash the application, posing significant security risks.
Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities in your software using just a manifest file like package-lock.json.
If you cannot update Vim immediately, refrain from opening any potentially corrupted undo files and consider using alternative text editors until the update can be applied.
References
Related vulnerabilities
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