Clearsilver - Format String Vulnerability
Summary
DSA-2355-1: clearsilver - format string vulnerability. Affects clearsilver versions < 0.10.5-1+squeeze1. Fixed in 0.10.5-1+squeeze1. How to fix ↓
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Background
Clearsilver is an HTML template system that provides a fast, powerful, and flexible way to generate dynamic web pages. It is widely used in various applications to separate the presentation layer from the logic layer. However, a format string vulnerability has been discovered in the Python bindings for Clearsilver, which could potentially lead to denial of service or the execution of arbitrary code.
Vulnerability Detail
The format string vulnerability in the Python bindings for Clearsilver arises from improper handling of user-supplied format strings. An attacker could exploit this vulnerability by providing a specially crafted format string, which may result in the execution of arbitrary code or a denial of service condition. This vulnerability poses a significant risk to systems that utilize Clearsilver for generating dynamic web pages.
How To Fix
Minimum fixed version
0.10.5-1+squeeze1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade clearsilverTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to apply the provided fixes to mitigate the risk.
Conclusion
The format string vulnerability in Clearsilver's Python bindings can lead to the execution of arbitrary code or a denial of service condition. It is crucial to upgrade to the fixed versions of Clearsilver to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for clearsilver →
FAQ
Clearsilver is an HTML template system used for generating dynamic web pages.
A format string vulnerability occurs when a program does not properly handle user-supplied format strings, which can lead to arbitrary code execution or denial of service.
An attacker can exploit this vulnerability by providing a specially crafted format string to the Python bindings for Clearsilver, potentially leading to the execution of arbitrary code or a denial of service condition.
No, there are no known workarounds for this vulnerability. It is crucial to apply the provided fixes to mitigate the risk.
To fix this vulnerability, upgrade the Clearsilver package to the fixed versions: 0.10.4-1.3+lenny1 for the oldstable distribution (lenny) and 0.10.5-1+squeeze1 for the stable distribution (squeeze).
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