Secunia Security Advisory - A vulnerability has been reported in Juniper Junos, which can be exploited by malicious people to cause a DoS (Denial of Service).
6896de19a7c2dc47cf7498f8ebc3a330877b75201e4e0de7a0ec5ae25b683114
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TITLE:
Juniper Junos MX Series "Ktree::createFourWayNode" Route Prefix
Denial of Service
SECUNIA ADVISORY ID:
SA46797
VERIFY ADVISORY:
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RELEASE DATE:
2011-11-11
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http://secunia.com/advisories/46797/
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DESCRIPTION:
A vulnerability has been reported in Juniper Junos, which can be
exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error within
"Ktree::createFourWayNode" when handling certain protocol-based route
prefix actions. This can be exploited to corrupt the data structures
within the MPC (Modular Port Concentrators) and cause a crash via
e.g. a specially crafted BGP "UPDATE".
NOTE: This only affects port concentrators based on the Trio chipset
e.g. MPC or embedded into the MX80.
The vulnerability is reported in versions 10.0, 10.1, 10.2, 10.3,
10.4 prior to 10.4R6, and 11.1 prior to 11.1R4.
SOLUTION:
Reportedly fixed in versions 10.0S18, 10.4R6, 11.1R4, and 11.2R1 or
later.
PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.
OTHER REFERENCES:
Further details available in Customer Area:
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DEEP LINKS:
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EXTENDED DESCRIPTION:
Further details available in Customer Area:
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EXTENDED SOLUTION:
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EXPLOIT:
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