Advisory Published
Updated

CVE-2014-4048

First published: Tue Jun 17 2014(Updated: )

The PJSIP Channel Driver in Asterisk Open Source before 12.3.1 allows remote attackers to cause a denial of service (deadlock) by terminating a subscription request before it is complete, which triggers a SIP transaction timeout.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Asterisk<=12.3.0
Asterisk=12.0.0
Asterisk=12.1.0
Asterisk=12.1.0-rc1
Asterisk=12.1.0-rc2
Asterisk=12.1.0-rc3
Asterisk=12.1.1
Asterisk=12.2.0
Asterisk=12.2.0-rc1
Asterisk=12.2.0-rc2
Asterisk=12.2.0-rc3
Asterisk=12.3.0-rc1
Asterisk=12.3.0-rc2

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Frequently Asked Questions

  • What is the severity of CVE-2014-4048?

    CVE-2014-4048 has been classified as a moderate severity vulnerability.

  • How do I fix CVE-2014-4048?

    To fix CVE-2014-4048, upgrade your Asterisk installation to version 12.3.1 or later.

  • What type of attack is associated with CVE-2014-4048?

    CVE-2014-4048 allows for a denial of service attack by causing a deadlock through improper handling of SIP subscription requests.

  • Which versions of Asterisk are affected by CVE-2014-4048?

    CVE-2014-4048 affects Asterisk versions up to and including 12.3.0.

  • Is CVE-2014-4048 exploitable remotely?

    Yes, CVE-2014-4048 can be exploited by remote attackers.

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