7.5
CWE
20
Advisory Published
Updated

CVE-2016-1983: Input Validation

First published: Wed Jan 27 2016(Updated: )

The client_host function in parsers.c in Privoxy before 3.0.24 allows remote attackers to cause a denial of service (invalid read and crash) via an empty HTTP Host header.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Privoxy<=3.0.23

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is the severity of CVE-2016-1983?

    CVE-2016-1983 is considered a high-severity vulnerability due to its potential to cause denial of service.

  • How do I fix CVE-2016-1983?

    To fix CVE-2016-1983, upgrade Privoxy to version 3.0.24 or later.

  • What systems are affected by CVE-2016-1983?

    CVE-2016-1983 affects Privoxy versions prior to 3.0.24.

  • What type of attack does CVE-2016-1983 allow?

    CVE-2016-1983 allows attackers to cause a denial of service through an empty HTTP Host header.

  • Who can exploit CVE-2016-1983?

    Any remote attacker can exploit CVE-2016-1983 by sending a specially crafted HTTP request.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203