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Ubuntu 13.10: USN-2160-1 Critical: LibYAML Denial of Service

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Calendar Grey April 3, 2014
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The latest update from Ubuntu Security Notice USN-2160-2 highlights a critical vulnerability in libyaml that could lead to application failures or execution of malicious code.
LibYAML could be made to crash or run programs if it opened a specially crafted YAML document.

Summary

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

crafted YAML document.

Software Description:

- libyaml: Fast YAML 1.1 parser and emitter library

Details:

Ivan Fratric discovered that LibYAML incorrectly handled certain malformed

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 software flaw libyaml

Update Instructions

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

Ubuntu 13.10:
  libyaml-0-2                     0.1.4-2ubuntu0.13.10.3

Ubuntu 12.10:
  libyaml-0-2                     0.1.4-2ubuntu0.12.10.3

Ubuntu 12.04 LTS:
  libyaml-0-2                     0.1.4-2ubuntu0.12.04.3

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-2160-1

CVE-2014-2525

Severity
critical
Lowest
Low
Medium
High
Critical

April 03, 2014

Topics%20covered

Topics Covered

security advisory denial of service critical issue ubuntu software flaw libyaml

Package Information

https://launchpad.net/ubuntu/+source/libyaml/0.1.4-2ubuntu0.13.10.3
https://launchpad.net/ubuntu/+source/libyaml/0.1.4-2ubuntu0.12.10.3
https://launchpad.net/ubuntu/+source/libyaml/0.1.4-2ubuntu0.12.04.3

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