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USN-3504-2: libxml2 vulnerability

5 December 2017

curl could be made to crash if it received specially crafted input.

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Releases

Packages

Details

USN-3504-1 fixed a vulnerability in libxml2. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Wei Lei discovered that libxml2 incorrecty handled certain parameter
entities. An attacker could use this issue with specially constructed XML
data to cause libxml2 to consume resources, leading to a denial of service.

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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.

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Update instructions

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

Ubuntu 12.04

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

References

Related notices

  • USN-3504-1: libxml2-dev, libxml2-utils, libxml2-doc, libxml2, python3-libxml2, libxml2-udeb, python-libxml2
  • USN-3739-1: libxml2-dev, libxml2-utils, libxml2-doc, libxml2, python3-libxml2, libxml2-udeb, python-libxml2

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Further reading