USN-3513-1: libxml2 vulnerability

USN-3513-1: libxml2 vulnerability

Ubuntu Security Notice USN-3513-1

13th December, 2017

libxml2 vulnerability

A security issue affects these releases of Ubuntu and its
derivatives:

  • Ubuntu 17.10
  • Ubuntu 17.04
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

libxml2 could be made to crash or run arbitrary code if it
opened a specially crafted file.

Software description

  • libxml2
    – GNOME XML library

Details

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

Update instructions

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

Ubuntu 17.10:
libxml2

2.9.4+dfsg1-4ubuntu1.2
libxml2-utils

2.9.4+dfsg1-4ubuntu1.2
python-libxml2

2.9.4+dfsg1-4ubuntu1.2
python3-libxml2

2.9.4+dfsg1-4ubuntu1.2
Ubuntu 17.04:
libxml2

2.9.4+dfsg1-2.2ubuntu0.3
libxml2-utils

2.9.4+dfsg1-2.2ubuntu0.3
python-libxml2

2.9.4+dfsg1-2.2ubuntu0.3
python3-libxml2

2.9.4+dfsg1-2.2ubuntu0.3
Ubuntu 16.04 LTS:
libxml2

2.9.3+dfsg1-1ubuntu0.5
libxml2-utils

2.9.3+dfsg1-1ubuntu0.5
python-libxml2

2.9.3+dfsg1-1ubuntu0.5
Ubuntu 14.04 LTS:
libxml2

2.9.1+dfsg1-3ubuntu4.12
libxml2-utils

2.9.1+dfsg1-3ubuntu4.12
python-libxml2

2.9.1+dfsg1-3ubuntu4.12

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2017-15412

Source: USN-3513-1: libxml2 vulnerability

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