2.6
CWE
20
Advisory Published
Updated

CVE-2006-1721: Input Validation

First published: Tue Apr 11 2006(Updated: )

digestmd5.c in the CMU Cyrus Simple Authentication and Security Layer (SASL) library 2.1.18, and possibly other versions before 2.1.21, allows remote unauthenticated attackers to cause a denial of service (segmentation fault) via malformed inputs in DIGEST-MD5 negotiation.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Cyrus SASL=2.1.18_r1
Cyrus SASL=2.1.19
Cyrus SASL=2.1.18
Cyrus SASL=2.1.18_r2
Cyrus SASL=2.1.20

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.

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2006-1721?

    CVE-2006-1721 has been classified as a potential denial of service vulnerability.

  • How do I fix CVE-2006-1721?

    To fix CVE-2006-1721, update the CMU Cyrus SASL library to version 2.1.21 or later.

  • What versions of CMU Cyrus SASL are affected by CVE-2006-1721?

    CVE-2006-1721 affects CMU Cyrus SASL versions 2.1.18, 2.1.19, 2.1.20, and earlier versions before 2.1.21.

  • Can CVE-2006-1721 be exploited remotely?

    Yes, CVE-2006-1721 can be exploited by remote unauthenticated attackers.

  • What is the impact of CVE-2006-1721?

    The impact of CVE-2006-1721 is a segmentation fault that leads to a denial of service condition.

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