[USN-1541-1] libotr vulnerability

Type securityvulns
Reporter Securityvulns
Modified 2012-08-20T00:00:00


========================================================================== Ubuntu Security Notice USN-1541-1 August 16, 2012

libotr vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 LTS
  • Ubuntu 11.10
  • Ubuntu 11.04
  • Ubuntu 10.04 LTS


Applications using Off-the-Record messaging plugins could be made to crash or run programs if it received specially crafted network messages.

Software Description: - libotr: Off-the-Record Messaging library


Justin Ferguson discovered multiple heap overflows in libotr. A remote attacker could use this to craft a malformed OTR message that could cause a denial of service via application crash or possibly execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04 LTS: libotr2 3.2.0-4ubuntu0.1

Ubuntu 11.10: libotr2 3.2.0-2.1ubuntu0.1

Ubuntu 11.04: libotr2 3.2.0-2ubuntu1.1

Ubuntu 10.04 LTS: libotr2 3.2.0-2ubuntu0.1

After a standard system update you need to restart any instant messaging applications using an Off-the-Record messaging plugin to make all the necessary changes.

References: http://www.ubuntu.com/usn/usn-1541-1 CVE-2012-3461

Package Information: https://launchpad.net/ubuntu/+source/libotr/3.2.0-4ubuntu0.1 https://launchpad.net/ubuntu/+source/libotr/3.2.0-2.1ubuntu0.1 https://launchpad.net/ubuntu/+source/libotr/3.2.0-2ubuntu1.1 https://launchpad.net/ubuntu/+source/libotr/3.2.0-2ubuntu0.1

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