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Juniper Junos OS: 2024-01 Security Bulletin: Junos OS: EX4100, EX4400, EX4600 and QFX5000 Series: A high rate of specific ICMP traffic will cause the PFE to hang (JSA75734) (CVE-2024-21595)

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Juniper Junos OS: 2024-01 Security Bulletin: Junos OS: EX4100, EX4400, EX4600 and QFX5000 Series: A high rate of specific ICMP traffic will cause the PFE to hang (JSA75734) (CVE-2024-21595)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
01/10/2024
Created
01/12/2024
Added
01/11/2024
Modified
01/28/2025

Description

An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). If an attacker sends high rate of specific ICMP traffic to a device with VXLAN configured, this causes a deadlock of the PFE and results in the device becoming unresponsive. A manual restart will be required to recover the device. This issue only affects EX4100, EX4400, EX4600, QFX5000 Series devices. This issue affects: Juniper Networks Junos OS *21.4R3 versions earlier than 21.4R3-S4; *22.1R3 versions earlier than 22.1R3-S3; *22.2R2 versions earlier than 22.2R3-S1; *22.3 versions earlier than 22.3R2-S2, 22.3R3; *22.4 versions earlier than 22.4R2; *23.1 versions earlier than 23.1R2.

Solution(s)

  • juniper-junos-os-upgrade-latest

References

  • https://attackerkb.com/topics/cve-2024-21595
  • CVE - 2024-21595
  • JSA75734
  • 查看数 704
  • 已创建
  • 最后回复

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