medium
4
CWE
399 476
Advisory Published
Updated

CVE-2012-2948: Null Pointer Dereference

First published: Sat Jun 02 2012(Updated: )

chan_skinny.c in the Skinny (aka SCCP) channel driver in Certified Asterisk 1.8.11-cert before 1.8.11-cert2 and Asterisk Open Source 1.8.x before 1.8.12.1 and 10.x before 10.4.1 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by closing a connection in off-hook mode.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Asterisk=1.8.11-cert
Asterisk=1.8.11-cert1
Asterisk<=1.8.12.0
Asterisk=1.8.0
Asterisk=1.8.0-beta1
Asterisk=1.8.0-beta2
Asterisk=1.8.0-beta3
Asterisk=1.8.0-beta4
Asterisk=1.8.0-beta5
Asterisk=1.8.0-rc1
Asterisk=1.8.0-rc2
Asterisk=1.8.0-rc3
Asterisk=1.8.0-rc4
Asterisk=1.8.0-rc5
Asterisk=1.8.1
Asterisk=1.8.1-rc1
Asterisk=1.8.2
Asterisk=1.8.2-rc1
Asterisk=1.8.3-rc1
Asterisk=1.8.5-rc1
Asterisk=1.8.5.0
Asterisk=1.8.6.0
Asterisk=1.8.6.0-rc1
Asterisk=1.8.6.0-rc2
Asterisk=1.8.6.0-rc3
Asterisk=1.8.7.0
Asterisk=1.8.7.0-rc1
Asterisk=1.8.7.0-rc2
Asterisk=1.8.8.0
Asterisk=1.8.8.0-rc1
Asterisk=1.8.8.0-rc2
Asterisk=1.8.8.0-rc3
Asterisk=1.8.8.0-rc4
Asterisk=1.8.8.0-rc5
Asterisk=1.8.9.0
Asterisk=1.8.9.0-rc1
Asterisk=1.8.9.0-rc2
Asterisk=1.8.9.0-rc3
Asterisk=1.8.10.0
Asterisk=1.8.10.0-rc1
Asterisk=1.8.10.0-rc2
Asterisk=1.8.10.0-rc3
Asterisk=1.8.10.0-rc4
Asterisk=1.8.11.0
Asterisk=1.8.11.0-rc2
Asterisk=1.8.11.0-rc3
Asterisk=1.8.12
Asterisk=1.8.12.0-rc1
Asterisk=1.8.12.0-rc2
Asterisk=1.8.12.0-rc3
Asterisk<=10.4.0
Asterisk=10.0.0
Asterisk=10.0.0-beta1
Asterisk=10.0.0-beta2
Asterisk=10.0.0-rc1
Asterisk=10.0.0-rc2
Asterisk=10.0.0-rc3
Asterisk=10.1.0
Asterisk=10.1.0-rc1
Asterisk=10.1.0-rc2
Asterisk=10.2.0
Asterisk=10.2.0-rc1
Asterisk=10.2.0-rc2
Asterisk=10.2.0-rc3
Asterisk=10.2.0-rc4
Asterisk=10.3
Asterisk=10.3.0
Asterisk=10.3.0-rc2
Asterisk=10.3.0-rc3
Asterisk=10.4.0-rc1
Asterisk=10.4.0-rc2
Asterisk=10.4.0-rc3
Asterisk<=1.8.12.0
Asterisk<=10.4.0

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-2012-2948?

    CVE-2012-2948 is classified as a medium severity vulnerability that can lead to a denial of service due to a NULL pointer dereference.

  • How do I fix CVE-2012-2948?

    To fix CVE-2012-2948, upgrade to Certified Asterisk 1.8.11-cert2 or later, or Asterisk Open Source 1.8.12.1 or later.

  • What software versions are affected by CVE-2012-2948?

    CVE-2012-2948 affects Certified Asterisk 1.8.11-cert before 1.8.11-cert2, Asterisk Open Source 1.8.x before 1.8.12.1, and 10.x before 10.4.1.

  • What type of attack does CVE-2012-2948 enable?

    CVE-2012-2948 enables remote authenticated users to perform a denial of service attack by causing the daemon to crash.

  • Is there any workaround for CVE-2012-2948?

    There are no known workarounds for CVE-2012-2948; patching or upgrading is recommended.

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