Integer Overflow Vulnerability in libquicktime: Denial of Service Risk
Summary
CVE-2016-2399: Integer overflow in the quicktime_read_pascal function in libquicktime 1.2.4 and earlier allows remote attackers to cause a denial of service or possibly have other unspecified impact via a crafted hdlr MP4 atom. Affects libquicktime versions < 2:1.2.4-10. Fixed in 2:1.2.4-10. How to fix ↓
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Background
libquicktime is an open-source library used for reading and writing QuickTime files. It is widely utilized in multimedia applications for handling video and audio data. The library provides functionalities for parsing various media formats, making it essential for developers working with multimedia content. However, an integer overflow vulnerability exists in versions 1.2.4 and earlier, which can be exploited by attackers to cause a denial of service or potentially other unspecified impacts.
Vulnerability Detail
The vulnerability, identified as CVE-2016-2399, arises from an integer overflow in the quicktime_read_pascal function. This flaw allows remote attackers to craft malicious hdlr MP4 atoms that, when processed by the library, can lead to unexpected behavior, including crashes or other denial of service scenarios. The vulnerability is particularly concerning as it can be exploited without user interaction, making it a significant risk for applications relying on libquicktime for media processing.
How To Fix
Minimum fixed version
2:1.2.4-10
This is the first release that contains the fix.
sudo apt-get install --only-upgrade libquicktimeTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If an immediate upgrade is not feasible, consider disabling any features that utilize libquicktime for processing untrusted media files. This can help reduce the risk of exploitation until the library is updated.
Conclusion
CVE-2016-2399 represents a significant risk for applications using libquicktime due to an integer overflow vulnerability that can lead to denial of service. It is crucial for developers to upgrade to the patched version of the library to mitigate this risk. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
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FAQ
CVE-2016-2399 is a vulnerability in the libquicktime library that allows for integer overflow, potentially leading to denial of service.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Exploitation of this vulnerability can lead to application crashes and denial of service, impacting the availability of services that rely on libquicktime.
Yes, upgrading to libquicktime version 2:1.2.4-10 or later addresses this vulnerability.
The CVSS score for CVE-2016-2399 is 7.8, indicating a high severity level.
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