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Ubuntu: 1546-1: libgc vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Ubuntu Applications using libgc could be made to crash or run arbitraryprograms as your login.
==========================================================================
Ubuntu Security Notice USN-1546-1
August 28, 2012

libgc 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
- Ubuntu 8.04 LTS

Summary:

Applications using libgc could be made to crash or run arbitrary
programs as your login.

Software Description:
- libgc: Boehm-Demers-Weiser garbage collecting storage allocator library

Details:

It was discovered that multiple integer overflows existed in the
malloc and calloc implementations in the Boehm-Demers-Weiser garbage
collecting memory allocator (libgc). These could allow an attacker
to cause 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 12.04 LTS:
  libgc1c2                        1:7.1-8ubuntu0.12.04.1

Ubuntu 11.10:
  libgc1c2                        1:7.1-8ubuntu0.11.10.1

Ubuntu 11.04:
  libgc1c2                        1:6.8-1.2ubuntu3.2

Ubuntu 10.04 LTS:
  libgc1c2                        1:6.8-1.2ubuntu1.1

Ubuntu 8.04 LTS:
  libgc1c2                        1:6.8-1.1ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1546-1
  CVE-2012-2673

Package Information:
  https://launchpad.net/ubuntu/+source/libgc/1:7.1-8ubuntu0.12.04.1
  https://launchpad.net/ubuntu/+source/libgc/1:7.1-8ubuntu0.11.10.1
  https://launchpad.net/ubuntu/+source/libgc/1:6.8-1.2ubuntu3.2
  https://launchpad.net/ubuntu/+source/libgc/1:6.8-1.2ubuntu1.1
  https://launchpad.net/ubuntu/+source/libgc/1:6.8-1.1ubuntu0.1


 
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