==========================================================================
Ubuntu Security Notice USN-3834-1
December 03, 2018
perl vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 18.10
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Perl.
Software Description:
– perl: Practical Extraction and Report Language
Details:
Jayakrishna Menon discovered that Perl incorrectly handled Perl_my_setenv.
An attacker could use this issue to cause Perl to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2018-18311)
Eiichi Tsukata discovered that Perl incorrectly handled certain regular
expressions. An attacker could use this issue to cause Perl to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10.
(CVE-2018-18312)
Eiichi Tsukata discovered that Perl incorrectly handled certain regular
expressions. An attacker could use this issue to cause Perl to crash,
resulting in a denial of service. (CVE-2018-18313)
Jakub Wilk discovered that Perl incorrectly handled certain regular
expressions. An attacker could use this issue to cause Perl to crash,
resulting in a denial of service. This issue only affected Ubuntu 16.04
LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10. (CVE-2018-18314)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
perl 5.26.2-7ubuntu0.1
Ubuntu 18.04 LTS:
perl 5.26.1-6ubuntu0.3
Ubuntu 16.04 LTS:
perl 5.22.1-9ubuntu0.6
Ubuntu 14.04 LTS:
perl 5.18.2-2ubuntu1.7
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3834-1
CVE-2018-18311, CVE-2018-18312, CVE-2018-18313, CVE-2018-18314
Package Information:
https://launchpad.net/ubuntu/+source/perl/5.26.2-7ubuntu0.1
https://launchpad.net/ubuntu/+source/perl/5.26.1-6ubuntu0.3
https://launchpad.net/ubuntu/+source/perl/5.22.1-9ubuntu0.6
https://launchpad.net/ubuntu/+source/perl/5.18.2-2ubuntu1.7
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==========================================================================
Ubuntu Security Notice USN-3834-2
December 03, 2018
perl vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 12.04 ESM
Summary:
Several security issues were fixed in Perl.
Software Description:
– perl: Practical Extraction and Report Language
Details:
USN-3834-1 fixed a vulnerability in perl. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Jayakrishna Menon discovered that Perl incorrectly handled
Perl_my_setenv. An attacker could use this issue to cause Perl to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2018-18311)
Eiichi Tsukata discovered that Perl incorrectly handled certain
regular expressions. An attacker could use this issue to cause Perl to
crash, resulting in a denial of service. (CVE-2018-18313)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 ESM:
perl 5.14.2-6ubuntu2.9
In general, a standard system update will make all the necessary
changes.
References:
https://usn.ubuntu.com/usn/usn-3834-2
https://usn.ubuntu.com/usn/usn-3834-1
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