Security Information / 2017 / Security Information -- DSA-3924-1 varnish

Debian Security Advisory

DSA-3924-1 varnish -- security update

Date Reported:

02 Aug 2017

Affected Packages:

varnish

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 870467.
In Mitre's CVE dictionary: CVE-2017-12425.

More information:

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.

See https://varnish-cache.org/security/VSV00001.html for details.

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.