Specially crafted IPv6 packets ​can trigger mbuf chain corruption, which may eventually lead to a kernel panic in Junos OS. Devices not configured for IPv6 are unaffected by this vulnerability.

No other Juniper Networks products or platforms are affected by this issue.

This issue is assigned CVE-2014-6450.

The following software releases have been updated to resolve this specific issue: Junos OS 11.4R12-S4, 11.4R13, 12.1X44-D41, 12.1X46-D26, 12.1X47-D11/D15, 12.2R9, 12.2X50-D70, 12.3R8, 12.3X48-D10, 12.3X50-D42, 13.1R4-S3, 13.1R5, 13.1X49-D42, 13.1X50-D30, 13.2R6, 13.2X51-D26, 13.2X52-D15, 13.3R3-S3, 13.3R4, 14.1R3, 14.2R1, 15.1R1, 15.1X49-D10 and all subsequent releases.

This issue is being tracked as PR 1016371 and is visible on the Customer Support website.

KB16765 [juniper.net] - "In which releases are vulnerabilities fixed?" describes which release vulnerabilities are fixed as per our End of Engineering and End of Life support policies.​​

​No known workaround exists for this issue.

2015-10-14: Initial publication
2015-12-17: While issue was initially found internally, a similar crash has been found in the field.

• ​KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process [juniper.net]
• KB16765: In which releases are vulnerabilities fixed? [juniper.net]
• KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories [juniper.net]
• Report a Vulnerability - How to Contact the Juniper Networks Security Incident Response Team
• CVE-2014-6450: Crafted packet causes mbuf chain corruption which may result in kernel panic​