Heap-Based Buffer Overflow in TIFF Package: CVE-2011-1167 Vulnerability Overview
Summary
DEBIAN-CVE-2011-1167: Heap-based buffer overflow in the thunder (aka ThunderScan) decoder in tif_thunder.c in LibTIFF 3.9.4 and earlier allows remote attackers to execute arbitrary code via crafted THUNDER_2BITDELTAS data in a .tiff file that... Affects tiff versions < 3.9.4-9. Fixed in 3.9.4-9. How to fix ↓
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Background
The TIFF package is a widely used library for handling Tagged Image File Format (TIFF) images. It provides functionalities for reading and writing TIFF files, which are commonly used in various applications, including digital imaging and graphic design. The library is essential for processing images in a variety of formats, making it a critical component in many software systems. However, certain versions of the TIFF package are vulnerable to a serious security issue that can lead to arbitrary code execution.
Vulnerability Detail
The vulnerability, identified as CVE-2011-1167, is a heap-based buffer overflow that occurs in the thunder (ThunderScan) decoder within the tif_thunder.c file of LibTIFF version 3.9.4 and earlier. This flaw allows remote attackers to exploit crafted THUNDER_2BITDELTAS data in a .tiff file with an unexpected BitsPerSample value, potentially leading to arbitrary code execution. The implications of this vulnerability are severe, as it can allow attackers to take control of affected systems, execute malicious code, and compromise sensitive data.
How To Fix
Minimum fixed version
3.9.4-9
This is the first release that contains the fix.
sudo apt-get install --only-upgrade tiffTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, avoid opening TIFF files from untrusted sources or disable the use of the thunder decoder if possible. This can help mitigate the risk until the package is updated.
Conclusion
The CVE-2011-1167 vulnerability in the TIFF package poses significant risks due to its potential for arbitrary code execution. It is crucial for users to update to the patched version 3.9.4-9 to safeguard their systems. Additionally, employing workarounds can help mitigate risks until the update is applied.
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FAQ
CVE-2011-1167 is a vulnerability in the TIFF package that allows for heap-based buffer overflow, potentially leading to arbitrary code execution.
Versions of the TIFF package prior to 3.9.4-9 are affected by this vulnerability.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without any signup.
The risks include potential arbitrary code execution, which can lead to system compromise and unauthorized access to sensitive data.
Yes, avoid opening TIFF files from untrusted sources and consider disabling the thunder decoder as a temporary measure.
References
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