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Ubuntu 12.04 LTS: USN-2926-1 Severe OTR Denial of Service Risk

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Calendar Grey March 10, 2016
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Users of Ubuntu 12.04 LTS must take action regarding the libotr security flaw, which poses threats including denial of service and potential for code execution.
OTR could be made to crash or run programs if it received specially crafted network traffic.

Summary

OTR could be made to crash or run programs if it received specially crafted

network traffic.

Software Description:

- libotr: Off-the-Record Messaging library

Details:

Markus Vervier discovered that OTR incorrectly handled large incoming

messages. A remote attacker could use this issue to cause OTR to crash,

resulting in a denial of service, or possibly execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu code execution risk OTR issue

Update Instructions

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

Ubuntu 12.04 LTS:
  libotr2                         3.2.0-4ubuntu0.3

After a standard system update you need to restart OTR applications to
make all the necessary changes

References

https://ubuntu.com/security/notices/USN-2926-1

CVE-2016-2851

Severity
critical
Lowest
Low
Medium
High
Critical

March 10, 2016

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu code execution risk OTR issue

Package Information

https://launchpad.net/ubuntu/+source/libotr/3.2.0-4ubuntu0.3

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