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Juniper Junos OS: MX Series MPC crash in Ktree::createFourWayNode after BGP UPDATE (JSA10485)

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Juniper Junos OS: MX Series MPC crash in Ktree::createFourWayNode after BGP UPDATE (JSA10485)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/01/2011
Created
07/25/2018
Added
05/07/2014
Modified
05/07/2014

Description

MPCs (Modular Port Concentrators) installed in an MX Series router may crash upon receipt of very specific and unlikely route prefix install/delete actions, such as a BGP routing update. The set of route prefix updates appears to be non-deterministic. Junos versions affected include 10.0, 10.1, 10.2, 10.3, 10.4 prior to 10.4R6, and 11.1 prior to 11.1R4. The trigger for the MPC crash was determined to be a valid BGP UPDATE received from a registered network service provider, although this one UPDATE was determined to not be solely responsible for the crashes. A complex sequence of preconditions is required to trigger this crash. Both IPv4 and IPv6 routing prefix updates can trigger this MPC crash.

Solution(s)

  • juniper-junos-os-upgrade-latest

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