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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2024-30380

Junos OS and Junos OS Evolved: l2cpd crash upon receipt of a specific TLV

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Status
Published
Published
Updated
Assigning organization
juniper

Description

An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS), which causes the l2cpd process to crash by sending a specific TLV. The l2cpd process is responsible for layer 2 control protocols, such as STP, RSTP, MSTP, VSTP, ERP, and LLDP.  The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP, leading to a Denial of Service.  Continued receipt and processing of this specific TLV will create a sustained Denial of Service (DoS) condition. This issue affects: Junos OS: all versions before 20.4R3-S9, from 21.2 before 21.2R3-S7, from 21.3 before 21.3R3-S5, from 21.4 before 21.4R3-S4, from 22.1 before 22.1R3-S4, from 22.2 before 22.2R3-S2, from 22.3 before 22.3R2-S2, 22.3R3-S1, from 22.4 before 22.4R2-S2, 22.4R3, from 23.2 before 23.2R1-S1, 23.2R2; Junos OS Evolved: all versions before 21.2R3-S7, from 21.3 before 21.3R3-S5-EVO, from 21.4 before 21.4R3-S5-EVO, from 22.1 before 22.1R3-S4-EVO, from 22.2 before 22.2R3-S2-EVO, from 22.3 before 22.3R2-S2-EVO, 22.3R3-S1-EVO, from 22.4 before 22.4R2-S2-EVO, 22.4R3-EVO, from 23.2 before 23.2R1-S1-EVO, 23.2R2-EVO.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Juniper Networks Junos OS

Default version status: unaffected

  • 0 to < 20.4R3-S9affected
  • 21.2 to < 21.2R3-S7affected
  • 21.3 to < 21.3R3-S5affected
  • 21.4 to < 21.4R3-S4affected
  • 22.1 to < 22.1R3-S4affected
  • 22.2 to < 22.2R3-S2affected
  • 22.3 to < 22.3R2-S2, 22.3R3-S1affected
  • 22.4 to < 22.4R2-S2, 22.4R3affected
  • 23.2 to < 23.2R1-S1, 23.2R2affected

Juniper Networks Junos OS Evolved

Default version status: unaffected

  • 0 to < 21.2R3-S7-EVOaffected
  • 21.3 to < 21.3R3-S5-EVOaffected
  • 21.4 to < 21.4R3-S5-EVOaffected
  • 22.1 to < 22.1R3-S4-EVOaffected
  • 22.2 to < 22.2R3-S2-EVOaffected
  • 22.3 to < 22.3R2-S2-EVO, 22.3R3-S1-EVOaffected
  • 22.4 to < 22.4R2-S2-EVO, 22.4R3-EVOaffected
  • 23.2 to < 23.2R1-S1-EVO, 23.2R2-EVOaffected

References