A vulnerability and a security issue have been reported in the Linux Kernel, which can be exploited by malicious people to cause a DoS (Denial of Service).
1) An error exists within the processing of packets with IPv6 type 0 route headers. This can be exploited to cause a DoS due to high network traffic by sending specially crafted IPv6 packets to vulnerable systems.
2) A boundary error due to the use of RTA_MAX instead of RTN_MAX in dn_fib_props within dn_fib.c and in fib_props within fib_semantics.c can potentially be exploited to cause a DoS.
Solution: Update to version 2.6.21.
Provided and/or discovered by: 1) Philippe Biondi and Arnaud Ebalard
2) Thomas Graf
Original Advisory: Linux:
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Subject: Linux Kernel IPv6 Type 0 Route Headers and RTA_MAX Denial of Service
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