Integer Overflow in Dillo PNG Image Handling
Summary
CVE-2009-2294: Integer overflow in the Png_datainfo_callback function in Dillo 2.1 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a PNG image with crafted (1) width or (... Affects dillo versions < 3.0-1. Fixed in 3.0-1. How to fix ↓
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Background
Dillo is an open-source web browser known for its lightweight and fast performance. It is primarily designed for embedded systems and low-end devices. The vulnerability discussed here affects Dillo versions 2.1 and earlier. Dillo's PNG image handling functionality is susceptible to an integer overflow vulnerability.
Vulnerability Detail
The vulnerability, identified as CVE-2009-2294, allows remote attackers to cause a denial of service (crash) and potentially execute arbitrary code by exploiting an integer overflow in the Png_datainfo_callback function. This can be achieved by providing a PNG image with manipulated width or height values. The integer overflow occurs due to insufficient validation of user-supplied input, leading to a buffer overflow and memory corruption. Successful exploitation of this vulnerability could result in a compromised system or unauthorized execution of arbitrary code.
How To Fix
Minimum fixed version
3.0-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade dilloTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
No specific workaround has been provided for this vulnerability. It is strongly advised to apply the official patch or update the software to the latest version.
Conclusion
The integer overflow vulnerability in Dillo's PNG image handling poses a significant risk to the security and stability of affected systems. It is crucial to promptly update Dillo to version 3.0-1 or later to mitigate this vulnerability. For further assistance or support in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for dillo →
FAQ
The vulnerability allows remote attackers to crash the Dillo browser and potentially execute arbitrary code. This can lead to a compromised system and unauthorized access to sensitive information.
Dillo versions 2.1 and earlier are affected by this vulnerability.
While there is no specific information about known exploits, the presence of an integer overflow vulnerability increases the risk of potential exploitation.
The recommended mitigation is to update Dillo to version 3.0-1 or later, which includes the necessary security patches to address the vulnerability.
No, this vulnerability affects Dillo across multiple operating systems.
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