Denial of Service Vulnerability in libquicktime: CVE-2017-12143
Summary
DEBIAN-CVE-2017-12143: In libquicktime 1.2.4, an allocation failure was found in the function quicktime_read_info in lqt_quicktime.c, which allows attackers to cause a denial of service via a crafted file. Affects libquicktime versions 2:1.2.4-12 – 2:1.2.4-17. No fix is published. How to fix ↓
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Background
libquicktime is an open-source library designed for reading and writing QuickTime files. It provides functionalities for handling multimedia data, making it essential for applications that require video processing. The library is widely used in various multimedia applications, but it has been found to have a vulnerability that can be exploited to cause a denial of service.
Vulnerability Detail
In libquicktime version 1.2.4, an allocation failure was identified in the function quicktime_read_info located in lqt_quicktime.c. This vulnerability allows attackers to craft a malicious file that, when processed by the library, can lead to a denial of service. The issue arises from improper handling of memory allocation, which can crash the application using the library, thereby disrupting its functionality.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, avoid processing untrusted QuickTime files. Implement input validation to ensure that only safe files are processed by the application utilizing libquicktime.
Conclusion
The vulnerability CVE-2017-12143 in libquicktime poses a risk of denial of service due to improper memory allocation handling. Users are advised to update to a patched version of the library to mitigate this risk. In the meantime, implementing workarounds such as avoiding untrusted files can help maintain application stability.
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FAQ
CVE-2017-12143 is a vulnerability in libquicktime that can lead to a denial of service due to an allocation failure when processing crafted files.
You can check if your application is affected by using the Vulert playground at Vulert Scanner, which allows you to monitor and alert for open-source vulnerabilities without requiring installation.
If an immediate update is not possible, ensure that your application does not process untrusted QuickTime files and implement input validation as a temporary measure.
The urgency of this vulnerability is classified as unimportant, but it can still lead to service disruptions if exploited.
More information about libquicktime can be found on its official repository or documentation pages, which provide details about its functionalities and usage.
References
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