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USN-151-1: zlib vulnerability

21 July 2005

zlib vulnerability

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Releases

Details

USN-148-1 fixed an improver input verification of zlib
(CAN-2005-2096). Markus Oberhumer discovered additional ways a
disrupted stream could trigger a buffer overflow and crash the
application using zlib, so another update is necessary.

zlib is used by hundreds of server and client applications, so this
vulnerability could be exploited to cause Denial of Service attacks to
almost all services provided by an Ubuntu system.

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 5.04
  • zlib1g -
Ubuntu 4.10
  • zlib1g -

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

References

Related notices