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USN-370-1: screen vulnerability

1 November 2006

screen vulnerability

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Releases

Details

cstone and Rich Felker discovered a programming error in the UTF8 string
handling code of "screen" leading to a denial of service. If a crafted
string was displayed within a screen session, screen would crash or
possibly execute arbitrary code.

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 6.10
  • screen - 4.0.2-4.1ubuntu5.6.10
Ubuntu 6.06
  • screen - 4.0.2-4.1ubuntu5.6.06
Ubuntu 5.10
  • screen - 4.0.2-4.1ubuntu2.5.10
Ubuntu 5.04
  • screen - 4.0.2-4.1ubuntu2.5.04

After a standard system upgrade you need to restart any running screen
sessions to effect the necessary changes.

References