UBUNTU-CVE-2021-36740

Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. This affects Varnish Enterprise 6.0.x before 6.0.8r3, and Varnish Cache 5.x and 6.x before 6.5.2, 6.6.x before 6.6.1, and 6.0 LTS before 6.0.8.

References

Affected packages

Ubuntu:20.04:LTS / varnish

Package

Name: varnish
Purl: pkg:deb/ubuntu/varnish@6.2.1-2ubuntu0.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

6.2.1-2ubuntu0.1

Affected versions

6.*

6.1.1-1

6.2.1-2

Ecosystem specific

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "libvarnishapi2",
            "binary_version":  "6.2.1-2ubuntu0.1"
        },
        {
            "binary_name":  "varnish",
            "binary_version":  "6.2.1-2ubuntu0.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36740.json"