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Debian Security Advisory DSA 3924-1 (varnish - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
A denial of service vulnerability was discovered in Varnish, a state of the art, high-performance web accelerator. Specially crafted HTTP requests can cause the Varnish daemon to assert and restart, clearing the cache in the process.
Affected Software
Affected Software
varnish on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the oldstable distribution (jessie), this problem has been fixed in version 4.0.2-1+deb8u1. For the stable distribution (stretch), this problem has been fixed in version 5.0.0-7+deb9u1. We recommend that you upgrade your varnish packages.