Ubuntu Security Notice 3513-2 - USN-3513-1 fixed a vulnerability in libxml2. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that libxml2 incorrectly 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. Various other issues were also addressed.
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Ubuntu Security Notice USN-3513-2
December 13, 2017
libxml2 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
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:
USN-3513-1 fixed a vulnerability in libxml2. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory 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 versions:
Ubuntu 12.04 ESM:
libxml2=C2=A02.7.8.dfsg-5.1ubuntu4.20
libxml2-utils2.7.8.dfsg-5.1ubuntu4.20
python-libxml22.7.8.dfsg-5.1ubuntu4.20
In general, a standard system update will make all the necessary
changes.
References:
https://www.ubuntu.com/usn/usn-3513-2
https://www.ubuntu.com/usn/usn-3513-1
CVE-2017-15412