Denial of Service Vulnerability in TIFF Package - CVE-2017-7594
Summary
ALPINE-CVE-2017-7594: The OJPEGReadHeaderInfoSecTablesDcTable function in tif_ojpeg.c in LibTIFF 4.0.7 allows remote attackers to cause a denial of service (memory leak) via a crafted image. Affects tiff versions < 4.0.7-r2. Fixed in 4.0.7-r2. How to fix ↓
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Background
The TIFF package is a widely used library for handling TIFF (Tagged Image File Format) images. It provides functionalities for reading and writing TIFF files, which are commonly used in various applications for image storage and processing. The library is known for its flexibility and support for multiple image compression formats. However, it has been found to be vulnerable to a specific issue that can lead to a denial of service.
Vulnerability Detail
The vulnerability, identified as CVE-2017-7594, originates from the OJPEGReadHeaderInfoSecTablesDcTable function in tif_ojpeg.c within the LibTIFF version 4.0.7. This flaw allows remote attackers to exploit crafted images, leading to a memory leak that can cause the application to crash or become unresponsive. The technical implications of this vulnerability include potential service disruptions and resource exhaustion, which can significantly impact applications relying on the TIFF library.
How To Fix
Minimum fixed version
4.0.7-r2
This is the first release that contains the fix.
sudo apk add --upgrade tiffTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If immediate updating is not feasible, consider implementing input validation to filter out potentially malicious TIFF files before processing them. This can help mitigate the risk of exploitation until the package is updated.
Conclusion
The CVE-2017-7594 vulnerability in the TIFF package poses a significant risk of denial of service through crafted images. It is crucial to update to the patched version 4.0.7-r2 to mitigate this risk. For immediate concerns, consider implementing input validation as a temporary measure.
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FAQ
CVE-2017-7594 is a vulnerability in the TIFF package that allows remote attackers to cause a denial of service through crafted images.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
The vulnerability can lead to a denial of service, causing applications to crash or become unresponsive due to memory leaks.
Yes, the patched version of the TIFF package is 4.0.7-r2. Updating to this version will resolve the vulnerability.
Implement input validation to filter out potentially malicious TIFF files as a temporary workaround until you can update the package.
References
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