Ubuntu Security Notice 2878-1 - David Golden discovered that the canonpath function in the Perl File::Spec module did not properly preserve the taint attribute. An attacker could possibly use this issue to bypass the taint protection mechanism.
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Ubuntu Security Notice USN-2878-1
January 21, 2016
perl vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.10
- Ubuntu 15.04
Summary:
Perl incorrectly handled the taint attribute.
Software Description:
- perl: Practical Extraction and Report Language
Details:
David Golden discovered that the canonpath function in the Perl File::Spec
module did not properly preserve the taint attribute. An attacker could
possibly use this issue to bypass the taint protection mechanism.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 15.10:
perl 5.20.2-6ubuntu0.1
Ubuntu 15.04:
perl 5.20.2-2ubuntu0.1
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2878-1
CVE-2015-8607
Package Information:
https://launchpad.net/ubuntu/+source/perl/5.20.2-6ubuntu0.1
https://launchpad.net/ubuntu/+source/perl/5.20.2-2ubuntu0.1