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Ubuntu Security Notice USN-1155-1

Ubuntu Security Notice USN-1155-1
Posted Jun 21, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1155-1 - It was discovered that NBD incorrectly handled certain long requests. A remote attacker could use this flaw to cause NBD to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2011-0530
SHA-256 | 20e18a4b4c5d1ca6912f57f2ba40b62da3ca3152aff5b4b0849321690eed0f1c

Ubuntu Security Notice USN-1155-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-1155-1
June 21, 2011

nbd vulnerability
==========================================================================

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

- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

An attacker could send crafted input to NBD and cause it to crash or to run
arbitrary programs.

Software Description:
- nbd: Network Block Device protocol

Details:

It was discovered that NBD incorrectly handled certain long requests. A
remote attacker could use this flaw to cause NBD to crash, resulting in
a denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 10.10:
nbd-server 1:2.9.14-2ubuntu1.10.10.1

Ubuntu 10.04 LTS:
nbd-server 1:2.9.14-2ubuntu1.10.04.1

Ubuntu 8.04 LTS:
nbd-server 1:2.9.9-1ubuntu1.1

After a standard system update you need to restart NBD to make all the
necessary changes.

References:
CVE-2011-0530

Package Information:
https://launchpad.net/ubuntu/+source/nbd/1:2.9.14-2ubuntu1.10.10.1
https://launchpad.net/ubuntu/+source/nbd/1:2.9.14-2ubuntu1.10.04.1
https://launchpad.net/ubuntu/+source/nbd/1:2.9.9-1ubuntu1.1


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