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Ubuntu 12.04 LTS: USN-2098-1 Critical: LibYAML Denial Of Service

ubuntu
Calendar Grey February 4, 2014
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LibYAML security flaw enables specially designed documents to lead to crashes or potential code execution. Ensure you update promptly for protection!
LibYAML could be made to crash or run programs if it opened specially crafted yaml document.

Summary

LibYAML could be made to crash or run programs if it opened specially

crafted yaml document.

Software Description:

- 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.

Topics%20covered

Topics Covered

security advisory denial of service critical issue ubuntu libyaml

Update Instructions

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

Ubuntu 13.10:
  libyaml-0-2                     0.1.4-2ubuntu0.13.10.1

Ubuntu 12.10:
  libyaml-0-2                     0.1.4-2ubuntu0.12.10.1

Ubuntu 12.04 LTS:
  libyaml-0-2                     0.1.4-2ubuntu0.12.04.1

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

References

https://ubuntu.com/security/notices/USN-2098-1

CVE-2013-6393

Severity
critical
Lowest
Low
Medium
High
Critical

February 04, 2014

Topics%20covered

Topics Covered

security advisory denial of service critical issue ubuntu libyaml

Package Information

https://launchpad.net/ubuntu/+source/libyaml/0.1.4-2ubuntu0.13.10.1
https://launchpad.net/ubuntu/+source/libyaml/0.1.4-2ubuntu0.12.10.1
https://launchpad.net/ubuntu/+source/libyaml/0.1.4-2ubuntu0.12.04.1

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