A vulnerability has been reported in the M-series, T-series, and J-Series routers, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error when freeing memory after receiving certain IPv6 packets. This can be exploited to cause a exhaust available memory by sending specially crafted IPv6 packets to the vulnerable router.
Successful exploitation crashes the router.
The vulnerability has been reported for routers using a version of the JUNOS Internet Software built before 2006-05-10.
Solution: Apply an updated version of the JUNOS software.
Provided and/or discovered by: Reported by the vendor.
Original Advisory: http://www.juniper.net/support/security/alerts/IPv6_bug.txt
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Subject: Juniper Networks JUNOS IPv6 Packet Handling Denial of Service
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