Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2018.0932.2
OpenSSL vulnerability
20 April 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libssl1.0.0
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0739
Reference: ESB-2018.0896
Original Bulletin:
http://www.ubuntu.com/usn/usn-3611-1
http://www.ubuntu.com/usn/usn-3611-2
Revision History: April 20 2018: Update to include Ubuntu 12.04 ESM
March 29 2018: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
==========================================================================
Ubuntu Security Notice USN-3611-2
April 17, 2018
openssl vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 12.04 ESM
Summary
Several security issues were fixed in OpenSSL.
Software Description
o 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
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make all the
necessary changes.
References
o https://usn.ubuntu.com/usn/usn-3611-2
o https://usn.ubuntu.com/usn/usn-3611-1
o CVE-2017-3735
o CVE-2018-0739
(C) 2017 Canonical Ltd. Ubuntu and Canonical are registered trademarks of
Canonical Ltd.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=orlE
-----END PGP SIGNATURE-----