USN-371-1: Ruby vulnerability

1 November 2006

Ruby vulnerability

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Releases

Details

An error was found in Ruby's CGI library that did not correctly check
for the end of multipart MIME requests. Using a crafted HTTP request, a
remote user could cause a denial of service, where Ruby CGI applications
would end up in a loop, monopolizing a CPU.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 6.10
  • libruby1.8 - 1.8.4-5ubuntu1.1
Ubuntu 6.06
  • libruby1.8 - 1.8.4-1ubuntu1.2
Ubuntu 5.10
  • libruby1.8 - 1.8.2-9ubuntu1.3
Ubuntu 5.04
  • libruby1.8 - 1.8.1+1.8.2pre4-1ubuntu0.5

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

References

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Further reading