Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2019.3245
Wind River VxWorks IPnet TCP/IP Stack Vulnerabilities (aka. URGENT/11)
27 August 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: VxWorks
Publisher: Fortiguard
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-12265 CVE-2019-12264 CVE-2019-12263
CVE-2019-12262 CVE-2019-12261 CVE-2019-12260
CVE-2019-12259 CVE-2019-12258 CVE-2019-12257
CVE-2019-12256 CVE-2019-12255
Reference: ASB-2019.0224
ESB-2019.2856
Original Bulletin:
https://fortiguard.com/psirt/FG-IR-19-222
- --------------------------BEGIN INCLUDED TEXT--------------------
Wind River VxWorks IPnet TCP/IP Stack Vulnerabilities (aka. URGENT/11)
IR Number : FG-IR-19-222
Date : Aug 26, 2019
Risk : 4/5
Impact : Buffer Overflow, DoS, etc
CVE ID : CVE-2019-12255, CVE-2019-12256, CVE-2019-12257, CVE-2019-12258, CVE-2019-12259, CVE-2019-12260, CVE-2019-12261, CVE-2019-12262, CVE-2019-12263, CVE-2019-12264, CVE-2019-12265
Summary
11 zero day vulnerabilities (aka. URGENT/11) were disclosed in VxWorks TCP/IP
stack (IPnet):
CVE-2019-12255 - TCP Urgent Pointer = 0 leads to integer underflow.
CVE-2019-12256 - Stack overflow in the parsing of IPv4 packets' IP options.
CVE-2019-12257 - Heap overflow in DHCP Offer/Ack parsing inside ipdhcpc.
CVE-2019-12258 - DoS of TCP connection via malformed TCP options.
CVE-2019-12259 - DoS via NULL dereference in IGMP parsing.
CVE-2019-12260 - TCP Urgent Pointer state confusion caused by malformed TCP AO
option.
CVE-2019-12261 - TCP Urgent Pointer state confusion during connect() to a
remote host.
CVE-2019-12262 - Handling of unsolicited Reverse ARP replies (logic flaw).
CVE-2019-12263 - TCP Urgent Pointer state confusion due to a race condition.
CVE-2019-12264 - Logic flaw in IPv4 assignment by ipdhcpc DHCP client.
CVE-2019-12265 - IGMP information leak via IGMPv3 specific membership report.
Impact
Buffer Overflow, DoS, etc
Affected Products
The following Fortinet products are NOT affected:
FortiOS
FortiAP
FortiSwitch
FortiAnalyzer
FortiMail
FortiManager
FortiWeb
None of the products above are using or based on VxWorks operating system.
References
o https://armis.com/urgent11/
- --------------------------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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=o4MJ
-----END PGP SIGNATURE-----