2.6
CWE
200
Advisory Published
Updated

CVE-2011-3634: Infoleak

First published: Fri Feb 28 2014(Updated: )

methods/https.cc in apt before 0.8.11 accepts connections when the certificate host name fails validation and Verify-Host is enabled, which allows man-in-the-middle attackers to obtain repository credentials via unspecified vectors.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
debian/apt
2.2.4
2.6.1
2.9.7
Debian APT Package Management<=0.8.10.3
Debian APT Package Management=0.8.0
Debian APT Package Management=0.8.0-pre1
Debian APT Package Management=0.8.0-pre2
Debian APT Package Management=0.8.1
Debian APT Package Management=0.8.10
Debian APT Package Management=0.8.10.1
Debian APT Package Management=0.8.10.2
Ubuntu Linux=8.04
Ubuntu Linux=10.04
Ubuntu Linux=10.10
Ubuntu Linux=11.04
Ubuntu=10.10
Ubuntu=8.04
Ubuntu=11.04
Ubuntu=10.04

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-2011-3634?

    CVE-2011-3634 has been classified as a high-severity vulnerability due to the potential for man-in-the-middle attacks.

  • How do I fix CVE-2011-3634?

    To fix CVE-2011-3634, update your apt package to version 0.8.11 or later.

  • Which versions of apt are affected by CVE-2011-3634?

    CVE-2011-3634 affects apt versions prior to 0.8.11, including several versions such as 0.8.0 and 0.8.10.x.

  • What kind of attacks can CVE-2011-3634 facilitate?

    CVE-2011-3634 can facilitate man-in-the-middle attacks, leading to the exposure of repository credentials.

  • Which operating systems are impacted by CVE-2011-3634?

    CVE-2011-3634 impacts multiple versions of Ubuntu and Debian distributions that are running affected versions of apt.

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