medium
6.5
CWE
400
Advisory Published
Updated

CVE-2016-8734

First published: Mon Oct 16 2017(Updated: )

Apache Subversion's mod_dontdothat module and HTTP clients 1.4.0 through 1.8.16, and 1.9.0 through 1.9.4 are vulnerable to a denial-of-service attack caused by exponential XML entity expansion. The attack can cause the targeted process to consume an excessive amount of CPU resources or memory.

Credit: security@apache.org

Affected SoftwareAffected VersionHow to fix
Subversion=1.4.0
Subversion=1.4.1
Subversion=1.4.2
Subversion=1.4.3
Subversion=1.4.4
Subversion=1.4.5
Subversion=1.4.6
Subversion=1.5.0
Subversion=1.5.1
Subversion=1.5.2
Subversion=1.5.3
Subversion=1.5.4
Subversion=1.5.5
Subversion=1.5.6
Subversion=1.5.7
Subversion=1.5.8
Subversion=1.6.0
Subversion=1.6.1
Subversion=1.6.2
Subversion=1.6.3
Subversion=1.6.4
Subversion=1.6.5
Subversion=1.6.6
Subversion=1.6.7
Subversion=1.6.8
Subversion=1.6.9
Subversion=1.6.10
Subversion=1.6.11
Subversion=1.6.12
Subversion=1.6.13
Subversion=1.6.14
Subversion=1.6.15
Subversion=1.6.16
Subversion=1.6.17
Subversion=1.6.18
Subversion=1.6.19
Subversion=1.6.20
Subversion=1.6.21
Subversion=1.6.23
Subversion=1.7.0
Subversion=1.7.1
Subversion=1.7.2
Subversion=1.7.3
Subversion=1.7.4
Subversion=1.7.5
Subversion=1.7.6
Subversion=1.7.7
Subversion=1.7.8
Subversion=1.7.9
Subversion=1.7.10
Subversion=1.7.11
Subversion=1.7.12
Subversion=1.7.13
Subversion=1.7.14
Subversion=1.7.15
Subversion=1.7.16
Subversion=1.7.17
Subversion=1.7.18
Subversion=1.7.19
Subversion=1.7.20
Subversion=1.8.0
Subversion=1.8.1
Subversion=1.8.2
Subversion=1.8.3
Subversion=1.8.4
Subversion=1.8.5
Subversion=1.8.6
Subversion=1.8.7
Subversion=1.8.8
Subversion=1.8.9
Subversion=1.8.10
Subversion=1.8.11
Subversion=1.8.12
Subversion=1.8.13
Subversion=1.8.14
Subversion=1.8.15
Subversion=1.8.16
Subversion=1.9.0
Subversion=1.9.1
Subversion=1.9.2
Subversion=1.9.3
Subversion=1.9.4
Debian=8.0
Debian=9.0

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-2016-8734?

    CVE-2016-8734 has been classified as a denial-of-service vulnerability that can lead to significant resource exhaustion.

  • How do I fix CVE-2016-8734?

    To mitigate CVE-2016-8734, users should upgrade to a patched version of Apache Subversion that addresses this vulnerability.

  • Which versions are affected by CVE-2016-8734?

    CVE-2016-8734 affects Apache Subversion versions 1.4.0 through 1.8.16 and 1.9.0 through 1.9.4.

  • What types of attacks are enabled by CVE-2016-8734?

    CVE-2016-8734 allows attackers to perform denial-of-service attacks through exponential XML entity expansion.

  • Is there a workaround for CVE-2016-8734?

    While the best solution is to update to a secure version, users may limit exposure by monitoring and blocking malicious XML requests.

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