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USN-488-1: mod_perl vulnerability

18 July 2007

mod_perl vulnerability

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Releases

Details

Alex Solovey discovered that mod_perl did not correctly validate certain
regular expression matches. A remote attacker could send a specially
crafted request to a web application using mod_perl, causing the web
server to monopolize CPU resources. This could lead to a remote denial
of service.

Reduce your security exposure

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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 7.04
  • libapache2-mod-perl2 - 2.0.2-2.3ubuntu1
Ubuntu 6.10
  • libapache2-mod-perl2 - 2.0.2-2ubuntu1.6.10.1
Ubuntu 6.06
  • libapache2-mod-perl2 - 2.0.2-2ubuntu1.6.06.1

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

References

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Further reading