UBUNTU-CVE-2017-12425

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Source
https://ubuntu.com/security/CVE-2017-12425
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-12425.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2017-12425
Related
Published
2017-08-04T09:29:00Z
Modified
2017-08-04T09:29:00Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in Varnish HTTP Cache 4.0.1 through 4.0.4, 4.1.0 through 4.1.7, 5.0.0, and 5.1.0 through 5.1.2. A wrong if statement in the varnishd source code means that particular invalid requests from the client can trigger an assert, related to an Integer Overflow. This causes the varnishd worker process to abort and restart, losing the cached contents in the process. An attacker can therefore crash the varnishd worker process on demand and effectively keep it from serving content - a Denial-of-Service attack. The specific source-code filename containing the incorrect statement varies across releases.

References

Affected packages

Ubuntu:16.04:LTS / varnish

Package

Name
varnish
Purl
pkg:deb/ubuntu/varnish?arch=src?distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.1.1-1ubuntu0.2

Affected versions

4.*

4.0.3-1
4.1.0-1
4.1.0-2
4.1.1-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "4.1.1-1ubuntu0.2",
            "binary_name": "libvarnishapi-dev"
        },
        {
            "binary_version": "4.1.1-1ubuntu0.2",
            "binary_name": "libvarnishapi-dev-dbgsym"
        },
        {
            "binary_version": "4.1.1-1ubuntu0.2",
            "binary_name": "libvarnishapi1"
        },
        {
            "binary_version": "4.1.1-1ubuntu0.2",
            "binary_name": "libvarnishapi1-dbgsym"
        },
        {
            "binary_version": "4.1.1-1ubuntu0.2",
            "binary_name": "varnish"
        },
        {
            "binary_version": "4.1.1-1ubuntu0.2",
            "binary_name": "varnish-dbg"
        },
        {
            "binary_version": "4.1.1-1ubuntu0.2",
            "binary_name": "varnish-dbgsym"
        },
        {
            "binary_version": "4.1.1-1ubuntu0.2",
            "binary_name": "varnish-doc"
        }
    ]
}