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Ubuntu Security Notice USN-4172-2

Ubuntu Security Notice USN-4172-2
Posted Nov 2, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4172-2 - USN-4172-1 fixed a vulnerability in file. This update provides the corresponding update for Ubuntu 12.04 ESM Ubuntu 14.04 ESM. It was discovered that file incorrectly handled certain malformed files. An attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2019-18218
MD5 | c3e0438c039e539d20d513465429b1c2

Ubuntu Security Notice USN-4172-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4172-2
October 31, 2019

file vulnerability
==========================================================================

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

file could be made to crash or run programs if it opened a specially
crafted file.

Software Description:
- file: Tool to determine file types

Details:

USN-4172-1 fixed a vulnerability in file. This update provides
the corresponding update for Ubuntu 12.04 ESM Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that file incorrectly handled certain malformed files. An
attacker could use this issue to cause a denial of service, or possibly
execute arbitrary code.

Update instructions:

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

Ubuntu 14.04 ESM:
file 1:5.14-2ubuntu3.4+esm1
libmagic1 1:5.14-2ubuntu3.4+esm1

Ubuntu 12.04 ESM:
file 5.09-2ubuntu0.8
libmagic1 5.09-2ubuntu0.8

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

References:
https://usn.ubuntu.com/4172-2
https://usn.ubuntu.com/4172-1
CVE-2019-18218

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