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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2023-28984

Junos OS: QFX Series: The PFE may crash when a lot of MAC addresses are being learned and aged

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Status
Published
Published
Updated
Assigning organization
juniper

Description

A Use After Free vulnerability in the Layer 2 Address Learning Manager (l2alm) of Juniper Networks Junos OS on QFX Series allows an adjacent attacker to cause the Packet Forwarding Engine to crash and restart, leading to a Denial of Service (DoS). The PFE may crash when a lot of MAC learning and aging happens, but due to a Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization) that is outside the attackers direct control. This issue affects: Juniper Networks Junos OS versions prior to 19.4R3-S10 on QFX Series; 20.2 versions prior to 20.2R3-S7 on QFX Series; 20.3 versions prior to 20.3R3-S6 on QFX Series; 20.4 versions prior to 20.4R3-S5 on QFX Series; 21.1 versions prior to 21.1R3-S4 on QFX Series; 21.2 versions prior to 21.2R3-S3 on QFX Series; 21.3 versions prior to 21.3R3-S3 on QFX Series; 21.4 versions prior to 21.4R3 on QFX Series; 22.1 versions prior to 22.1R3 on QFX Series; 22.2 versions prior to 22.2R2 on QFX Series.

Affected products

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

Juniper Networks Junos OS

  • unspecified to < 19.4R3-S10affected
  • 20.2 to < 20.2R3-S7affected
  • 20.3 to < 20.3R3-S6affected
  • 20.4 to < 20.4R3-S5affected
  • 21.1 to < 21.1R3-S4affected
  • 21.2 to < 21.2R3-S3affected
  • 21.3 to < 21.3R3-S3affected
  • 21.4 to < 21.4R3affected
  • 22.1 to < 22.1R3affected
  • 22.2 to < 22.2R2affected

References