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The following updates has been released for Ubuntu Linux 12.04 ESM:

USN-3611-2: OpenSSL vulnerabilities
USN-3625-2: Perl vulnerabilities



USN-3611-2: OpenSSL vulnerabilities


==========================================================================
Ubuntu Security Notice USN-3611-2
April 17, 2018

openssl vulnerabilities
==========================================================================

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

- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in OpenSSL.

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools

Details:

USN-3611-1 fixed a vulnerability in OpenSSL. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 It was discovered that OpenSSL incorrectly parsed the IPAddressFamily
 extension in X.509 certificates, resulting in an erroneous display of
 the certificate in text format. (CVE-2017-3735)

 It was discovered that OpenSSL incorrectly handled certain ASN.1
 types. A remote attacker could possibly use this issue to cause a
 denial of service. (CVE-2018-0739)

Update instructions:

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

Ubuntu 12.04 ESM:
  libssl1.0.0 1.0.1-4ubuntu5.40
  openssl 1.0.1-4ubuntu5.40

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  https://usn.ubuntu.com/usn/usn-3611-2
  https://usn.ubuntu.com/usn/usn-3611-1
  CVE-2017-3735, CVE-2018-0739

USN-3625-2: Perl vulnerabilities


==========================================================================
Ubuntu Security Notice USN-3625-2
April 17, 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-3625-1 fixed a vulnerability in Perl. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 It was discovered that Perl incorrectly handled certain regular
 expressions. An attacker could possibly use this issue to cause Perl
 to hang, resulting in a denial of service. (CVE-2015-8853)

 It was discovered that Perl incorrectly loaded libraries from the
 current working directory. A local attacker could possibly use this
 issue to execute arbitrary code. (CVE-2016-6185)

 It was discovered that Perl incorrectly handled the rmtree and
 remove_tree functions. A local attacker could possibly use this issue
 to set the mode on arbitrary files. (CVE-2017-6512)

 GwanYeong Kim discovered that Perl incorrectly handled certain data
 when using the pack function. An attacker could use this issue to
 cause Perl to crash, resulting in a denial of service, or possibly
 execute arbitrary code. (CVE-2018-6913)

Update instructions:

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

Ubuntu 12.04 ESM:
  perl 5.14.2-6ubuntu2.7

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

References:
  https://usn.ubuntu.com/usn/usn-3625-2
  https://usn.ubuntu.com/usn/usn-3625-1
  CVE-2015-8853, CVE-2016-6185, CVE-2017-6512, CVE-2018-6913