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Ubuntu Security Notice USN-3605-1
March 22, 2018

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

– Ubuntu 17.10
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS

Summary:

Sharutils could be made to execute arbitrary code if it opened a
specially crafted file.

Software Description:
– sharutils: shar, unshar, uuencode, uudecode

Details:

It was discovered that Sharutils incorrectly handled certain files. An
attacker could possibly use this to execute arbitrary code.

Update instructions:

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

Ubuntu 17.10:
sharutils                       1:4.15.2-2ubuntu0.1

Ubuntu 16.04 LTS:
sharutils                       1:4.15.2-1ubuntu0.1

Ubuntu 14.04 LTS:
sharutils                       1:4.14-1ubuntu1.1

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

References:
https://usn.ubuntu.com/usn/usn-3605-1
CVE-2018-1000097

Package Information:
https://launchpad.net/ubuntu/+source/sharutils/1:4.15.2-2ubuntu0.1
https://launchpad.net/ubuntu/+source/sharutils/1:4.15.2-1ubuntu0.1
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