REDHAT-BUG-1475530
First published: Wed Jul 26 2017(Updated: )
In LibTIFF 4.0.8, there is a denial of service vulnerability in the TIFFOpen function. A crafted input will lead to a denial of service attack. During the TIFFOpen process, td_imagelength is not checked. The value of td_imagelength can be directly controlled by an input file. In the ChopUpSingleUncompressedStrip function, the _TIFFCheckMalloc function is called based on td_imagelength. If we set the value of td_imagelength close to the amount of system memory, it will hang the system or trigger the OOM killer. References: <a href="https://gist.github.com/dazhouzhou/1a3b7400547f23fe316db303ab9b604f">https://gist.github.com/dazhouzhou/1a3b7400547f23fe316db303ab9b604f</a> <a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=869823">https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=869823</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libtiff |
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Reference Links
- https://gist.github.com/dazhouzhou/1a3b7400547f23fe316db303ab9b604f
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=869823
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1475531
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1475532
- https://bugzilla.redhat.com/show_bug.cgi?id=1475530
Frequently Asked Questions
What is the severity of REDHAT-BUG-1475530?
The severity of REDHAT-BUG-1475530 is classified as denial of service due to an unchecked input during the TIFFOpen process.
How do I fix REDHAT-BUG-1475530?
To fix REDHAT-BUG-1475530, update to a version of LibTIFF that addresses the vulnerability.
What impact does REDHAT-BUG-1475530 have on systems?
REDHAT-BUG-1475530 can lead to a denial of service, causing applications using LibTIFF to crash or become unresponsive.
When was REDHAT-BUG-1475530 discovered?
REDHAT-BUG-1475530 was reported as a vulnerability in LibTIFF version 4.0.8.
Which versions of LibTIFF are affected by REDHAT-BUG-1475530?
LibTIFF version 4.0.8 is specifically affected by the vulnerability identified in REDHAT-BUG-1475530.
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