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Debian: Security Advisory for varnish (DSA-5088-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'varnish' package(s) announced via the DSA-5088-1 advisory.
Insight
Insight
Brief introduction CVE-2021-36740 Martin Blix Grydeland discovered that Varnish is vulnerable to request smuggling attacks if the HTTP/2 protocol is enabled. CVE-2022-23959 James Kettle discovered a request smuggling attack against the HTTP/1 protocol implementation in Varnish.
Affected Software
Affected Software
'varnish' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the oldstable distribution (buster), these problems have been fixed in version 6.1.1-1+deb10u3. For the stable distribution (bullseye), these problems have been fixed in version 6.5.1-1+deb11u2. We recommend that you upgrade your varnish packages.