Security Update for squid3
Summary
DSA-3522-1: squid3 - security update. Affects squid3 versions < 3.1.20-2.2+deb7u4. Fixed in 3.1.20-2.2+deb7u4. How to fix ↓
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Background
Squid3 is a fully featured web proxy cache that is widely used to improve web performance by caching frequently accessed content. It acts as an intermediary between clients and servers, storing copies of requested resources to serve future requests more quickly. However, a vulnerability has been discovered in Squid3 that can be exploited by a remote HTTP server to cause a denial of service.
Vulnerability Detail
The vulnerability in Squid3 is related to the handling of errors for certain malformed HTTP responses. When encountering these malformed responses, Squid3 does not handle the errors properly, leading to an assertion failure and the daemon exiting. This vulnerability can be exploited by a remote HTTP server, allowing an attacker to disrupt the normal operation of Squid3 and potentially impact the availability of web services relying on it.
How To Fix
Minimum fixed version
3.1.20-2.2+deb7u4
This is the first release that contains the fix.
sudo apt-get install --only-upgrade squid3Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
Squid3 is a widely used web proxy cache that has been found to have a vulnerability related to the handling of errors for certain malformed HTTP responses. This vulnerability can be exploited by a remote HTTP server to cause a denial of service. To mitigate this vulnerability, it is crucial to upgrade the squid3 package to the fixed versions provided by Debian. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for squid3 →
FAQ
Squid3 is a fully featured web proxy cache that improves web performance by caching frequently accessed content.
This vulnerability allows a remote HTTP server to cause a denial of service by exploiting the way Squid3 handles errors for certain malformed HTTP responses.
To fix this vulnerability, you should upgrade the squid3 package to the fixed versions provided by Debian.
No specific workarounds have been mentioned for this vulnerability. It is recommended to apply the available fixes.
You can obtain the fixed packages from the official Debian repositories or through the package management system of your distribution.
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