Saturday, October 16, 2021

Juniper Junos OS: 2021-10 Security Bulletin: Junos OS and Junos OS Evolved: An IS-IS adjacency might be taken down if a bad hello PDU is received for an existing adjacency causing a DoS (JSA11224) (CVE-2021-31362)

Description
A Protection Mechanism Failure vulnerability in RPD (routing protocol daemon) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause established IS-IS adjacencies to go down by sending a spoofed hello PDU leading to a Denial of Service (DoS) condition.
Solution(s)
  • juniper-junos-os-upgrade-latest


  • References
  • https://attackerkb.com/topics/cve-2021-31362
  • CVE - 2021-31362
  • JSA11224




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