Denial of Service vulnerability in Squid package (CVE-2023-49286)
Summary
CVE-2023-49286: Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Affects squid across 2 version ranges.
< 6.5-r0
< 6014c6648a2a54a4ecb7f952ea1163e0798f9264
Fixed in 6.5-r0. How to fix ↓
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Background
Squid is a caching proxy for the Web that supports HTTP, HTTPS, FTP, and more. It is widely used to improve web server performance by caching frequently accessed content. However, a vulnerability has been discovered in Squid that can lead to a Denial of Service (DoS) attack against its Helper process management.
Vulnerability Detail
The vulnerability in Squid, identified as CVE-2023-49286, is caused by an Incorrect Check of Function Return Value bug. This bug allows an attacker to exploit the Helper process management in Squid, resulting in a DoS attack. The bug has been fixed in Squid version 6.5. The impact of this vulnerability is that it can disrupt the normal functioning of Squid, potentially leading to service unavailability and affecting the performance of web servers relying on Squid for caching.
How To Fix
Minimum fixed version
6.5-r0
This is the first release that contains the fix.
sudo apk add --upgrade squidTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
The Denial of Service vulnerability in Squid package (CVE-2023-49286) can be mitigated by upgrading to Squid version 6.5 or later. This upgrade ensures that the vulnerability is patched, preventing potential DoS attacks and maintaining the stability and performance of web servers relying on Squid. For further assistance or information, please contact DevNack.com.
See every vulnerability recorded for squid →
FAQ
Squid is a caching proxy for the Web that improves web server performance by caching frequently accessed content.
The vulnerability in Squid can lead to a Denial of Service (DoS) attack, potentially causing service unavailability and affecting web server performance.
To fix this vulnerability, upgrade your Squid installation to version 6.5 or later.
No, there are no known workarounds for this vulnerability. Upgrading to the fixed version is the recommended solution.
For more information about this vulnerability, you can refer to the official CVE-2023-49286 entry or reach out to info@devnack.com for further support.
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