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AUSCERT External Security Bulletin Redistribution
ESB-2014.1802
JunosE: SRP Reset upon receipt of a malformed ICMP packet
when icmpTraffic logging is enabled (CVE-2014-6377)
9 October 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: JunosE
Publisher: Juniper Networks
Operating System: Juniper
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-6377
Original Bulletin:
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10651
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2014-10 Security Bulletin: JunosE: SRP Reset upon receipt of a malformed ICMP
packet when icmpTraffic logging is enabled (CVE-2014-6377)
Categories:
E-series
JunosE
SIRT Advisory
Security Advisories ID: JSA10651
Last Updated: 08 Oct 2014
Version: 1.0
PRODUCT AFFECTED:
This issue can affect all E Series routers running an affected release that
are accessible via ICMP.
PROBLEM:
Receipt of a specifically malformed ICMP packet sent to the interface or
loopback IP address of an E Series router while icmpTraffic logging is enabled
may lead to an SRP reset, type: processor exception 0x300 (data access), in
task: ip_RxData_8. In a redundant SRP configuration, the system will recover
immediately. However, additional malformed packets may cause follow-on SRP
resets and lead to an extended service outage.
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
No other Juniper Networks products or platforms are affected by this issue.
This issue has been assigned CVE-2014-6377.
SOLUTION:
JunosE releases containing the fix specifically include: 13.3.3p0-1, 14.3.2,
15.1.0, and all subsequent releases.
This issue is being tracked as CQ 97568 and is visible on the Customer Support
website.
KB16765 - "In which releases are vulnerabilities fixed?" describes which
release vulnerabilities are fixed as per our End of Engineering and End of
Life support policies.
WORKAROUND:
Disable icmpTraffic logging if active ICMP troublshooting is not being
performed.
Use access lists or firewall filters to limit access to the router via ICMP
only from trusted hosts.
IMPLEMENTATION:
How to obtain fixed software:
Security vulnerabilities in JunosE are fixed in the next available Maintenance
Release of each supported JunosE version. In some cases, a Maintenance Release
is not planned to be available in an appropriate time-frame. For these cases,
JunosE patches are made available in order to be more timely. Security
Advisory and Security Notices will indicate which Maintenance and patch
releases contain fixes for the issues described. Upon request to JTAC,
customers will be provided download instructions for a patch release. Although
Juniper does not provide formal Release Note documentation for a patch
release, a list of resolved defects are published via Patch Release Histories
available on the download page.
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-2014-6377: SRP Reset upon receipt of a malformed ICMP packet
CVSS SCORE:
7.1 (AV:N/AC:M/Au:N/C:N/I:N/A:C)
RISK LEVEL:
High
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:
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