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Juniper Junos OS: JUNOS too sensitive to fragmented packets which are addressed to the router. (JSA10431)

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Juniper Junos OS: JUNOS too sensitive to fragmented packets which are addressed to the router. (JSA10431)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
04/01/2010
Created
07/25/2018
Added
05/07/2014
Modified
05/07/2014

Description

Fragmented packets sent directly to a JUNOS device will not efficiently clear from route engine's packet memory (mbuf). This exposes the router to additional risk, where mbuf can fill to where no other packets can be accepted. The creates a denial of service against the router's control and management plane traffic. In most cases the fragmented packets will time out and get cleared from mbuf, restoring service. In rare cases, the fragmented packets will not be cleared.

Solution(s)

  • juniper-junos-os-upgrade-latest

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