Monday, July 19, 2021

Juniper Junos OS: 2021-07 Security Bulletin: Junos OS: MX Series, EX9200 Series, SRX4600: Ethernet interface vulnerable to specially crafted frames (JSA11192) (CVE-2021-0290)

Description
Improper Handling of Exceptional Conditions in Ethernet interface frame processing of Juniper Networks Junos OS allows an attacker to send specially crafted frames over the local Ethernet segment, causing the interface to go into a down state, resulting in a Denial of Service (DoS) condition. The interface does not recover on its own and the FPC must be reset manually. Continued receipt and processing of these frames will create a sustained Denial of Service (DoS) condition.
Solution(s)
  • juniper-junos-os-upgrade-latest


  • References
  • https://attackerkb.com/topics/cve-2021-0290
  • CVE - 2021-0290
  • JSA11192




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