USN-357-1: Mono vulnerability

5 October 2006

Mono vulnerability

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Releases

Details

Sebastian Krahmer of the SuSE security team discovered that the
System.CodeDom.Compiler classes used temporary files in an insecure
way. This could allow a symbolic link attack to create or overwrite
arbitrary files with the privileges of the user invoking the program.
Under some circumstances, a local attacker could also exploit this to
inject arbitrary code into running Mono processes.

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Update instructions

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

Ubuntu 6.06
  • mono-classlib-2.0 - 1.1.13.6-0ubuntu3.1
  • mono-classlib-1.0 - 1.1.13.6-0ubuntu3.1
Ubuntu 5.10
  • mono-classlib-2.0 - 1.1.8.3-1ubuntu2.1
  • mono-classlib-1.0 - 1.1.8.3-1ubuntu2.1

In general, a standard system upgrade is sufficient to effect the
necessary changes.

References

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Further reading