Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2017.2576
JSA10808 - 2017-10 Security Bulletin: ScreenOS: SSL Death
Alert vulnerability impacts ScreenOS (CVE-2016-8610)
12 October 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Juniper ScreenOS
Publisher: Juniper Networks
Operating System: Juniper
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-8610
Reference: ASB-2017.0011
ESB-2017.2550
ESB-2017.2091
ESB-2017.2081
Original Bulletin:
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10808
- --------------------------BEGIN INCLUDED TEXT--------------------
2017-10 Security Bulletin: ScreenOS: SSL Death Alert vulnerability impacts
ScreenOS (CVE-2016-8610)
PRODUCT AFFECTED:
This issue affects Juniper Networks ScreenOS 6.3.0 prior to 6.3.0r24.
PROBLEM:
A denial of service flaw was found in the way the TLS/SSL protocol specifies
processing of ALERT packets during a connection handshake. A remote attacker
could use this flaw to make the ScreenOS TLS/SSL server consume an excessive
amount of CPU time and trigger a denial of service condition for the ScreenOS
device.
Affected releases are Juniper Networks ScreenOS 6.3.0 prior to 6.3.0r24.
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
This issue has been assigned CVE-2016-8610.
SOLUTION:
The following software releases have been updated to resolve this specific
issue: 6.3.0r24 and all subsequent releases.
This issue is being tracked as PR 1228608 and is visible on the Customer
Support website.
WORKAROUND:
Use access lists or firewall filters to limit access to the firewall's WebUI
only from trusted hosts
IMPLEMENTATION:
Software Releases, patches and updates are available at
https://www.juniper.net/support/downloads/screenos.html.
MODIFICATION HISTORY:
2017-10-11: Initial Publication.
RELATED LINKS:
KB16613: Overview of the Juniper Networks SIRT Monthly Security Bulletin
Publication Process
KB16765: In which releases are vulnerabilities fixed?
KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security
Advisories
Report a Vulnerability - How to Contact the Juniper Networks Security Incident
Response Team
CVE-2016-8610 at cve.mitre.org
CVSS SCORE:
5.9 (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
RISK LEVEL:
Medium
RISK ASSESSMENT:
Information for how Juniper Networks uses CVSS can be found at KB 16446
"Common Vulnerability Scoring System (CVSS) and Juniper's Security
Advisories."
ACKNOWLEDGEMENTS:
Juniper SIRT would like to acknowledge and thank
Shi Lei of Gear Team, Qihoo 360 Inc.
- --------------------------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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=ovXv
-----END PGP SIGNATURE-----