medium
5.9
CWE
119
Advisory Published
Updated

CVE-2016-0771: Buffer Overflow

First published: Sun Mar 13 2016(Updated: )

The internal DNS server in Samba 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4, when an AD DC is configured, allows remote authenticated users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from process memory by uploading a crafted DNS TXT record.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Samba=4.0.0
Samba=4.0.1
Samba=4.0.2
Samba=4.0.3
Samba=4.0.4
Samba=4.0.5
Samba=4.0.6
Samba=4.0.7
Samba=4.0.8
Samba=4.0.9
Samba=4.0.10
Samba=4.0.11
Samba=4.0.12
Samba=4.0.13
Samba=4.0.14
Samba=4.0.15
Samba=4.0.16
Samba=4.0.17
Samba=4.0.18
Samba=4.0.19
Samba=4.0.20
Samba=4.0.21
Samba=4.0.22
Samba=4.0.23
Samba=4.0.24
Samba=4.1.0
Samba=4.1.1
Samba=4.1.2
Samba=4.1.3
Samba=4.1.4
Samba=4.1.5
Samba=4.1.6
Samba=4.1.7
Samba=4.1.8
Samba=4.1.9
Samba=4.1.10
Samba=4.1.11
Samba=4.1.12
Samba=4.1.13
Samba=4.1.14
Samba=4.1.15
Samba=4.1.16
Samba=4.1.17
Samba=4.1.18
Samba=4.1.19
Samba=4.1.20
Samba=4.1.21
Samba=4.1.22
Samba=4.2.0-rc1
Samba=4.2.0-rc2
Samba=4.2.0-rc3
Samba=4.2.0-rc4
Samba=4.2.1
Samba=4.2.2
Samba=4.2.3
Samba=4.2.4
Samba=4.2.5
Samba=4.2.6
Samba=4.2.7
Samba=4.2.8
Samba=4.3.0
Samba=4.3.1
Samba=4.3.2
Samba=4.3.3
Samba=4.3.4
Samba=4.3.5
Samba=4.4.0-rc1
Samba=4.4.0-rc2
Samba=4.4.0-rc3

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.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-0771?

    CVE-2016-0771 is classified with a Medium severity due to its potential to cause denial of service and information exposure.

  • How can I fix CVE-2016-0771?

    To fix CVE-2016-0771, update Samba to versions 4.1.23, 4.2.9, 4.3.6, or later.

  • Who is affected by CVE-2016-0771?

    CVE-2016-0771 affects Samba versions 4.x prior to specific patch releases for various versions.

  • What type of vulnerability is CVE-2016-0771?

    CVE-2016-0771 is a remote authenticated denial of service vulnerability.

  • Can CVE-2016-0771 allow information disclosure?

    Yes, CVE-2016-0771 can potentially allow remote authenticated users to obtain sensitive information from the process memory.

Company

Resources

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