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[USN-3356-2] Expat vulnerability

Posted on 19 July 2017
Ubuntu Security

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Ubuntu Security Notice USN-3356-2
July 19, 2017

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

- Ubuntu 12.04 ESM

Summary:

Expat could be made to hang if it received specially crafted input.

Software Description:
- expat: XML parsing C library

Details:

USN-3356-1 fix a vulnerability in Expat. This update provides
the corresponding udpate for Ubuntu 12.04 ESM.

Original advisory details:

=C2=A0It was discovered that Expat incorrectly handled certain external
=C2=A0entities. A remote attacker could possibly use this issue to cause
=C2=A0Expat to hang, resulting in a denial of service.

Update instructions:

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

Ubuntu 12.04 ESM:
=C2=A0 lib64expat1=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A02.0.1-=
7.2ubuntu1.5
=C2=A0 libexpat1=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A02.0.1-7.2ubuntu1.5

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

References:
=C2=A0 https://www.ubuntu.com/usn/usn-3356-2
=C2=A0 https://www.ubuntu.com/usn/usn-3356-1
=C2=A0 CVE-2017-9233

 

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