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Ubuntu Security Notice USN-1541-1

Ubuntu Security Notice USN-1541-1
Posted Aug 17, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1541-1 - 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.

tags | advisory, remote, denial of service, overflow, arbitrary
systems | linux, ubuntu
advisories | CVE-2012-3461
MD5 | 47ba2282c1b991db82eb3c0dc1df42a2

Ubuntu Security Notice USN-1541-1

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Content-Disposition: inline

==========================================================================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

Summary:

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

Details:

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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