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USN-2098-1: LibYAML vulnerability

4 February 2014

LibYAML could be made to crash or run programs if it opened specially crafted yaml document.

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Releases

Packages

  • libyaml - Fast YAML 1.1 parser and emitter library

Details

Florian Weimer discovered that LibYAML incorrectly handled certain large
yaml documents. An attacker could use this issue to cause LibYAML to crash,
resulting in a denial of service, or possibly execute arbitrary code.

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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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 13.10
Ubuntu 12.10
Ubuntu 12.04

After a standard system update you need to restart applications using
LibYAML to make all the necessary changes.

References

Related notices

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Further reading