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Unrated severityNVD Advisory· Published Jul 10, 2024· Updated Aug 2, 2024

Junos OS Evolved: Execution of a specific CLI command will cause a crash in the AFT manager

CVE-2024-39513

Description

An Improper Input Validation vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved allows a local, low-privileged attacker to cause a Denial of Service (DoS).

When a specific "clear" command is run, the Advanced Forwarding Toolkit manager (evo-aftmand-bt or evo-aftmand-zx) crashes and restarts.

The crash impacts all traffic going through the FPCs, causing a DoS. Running the command repeatedly leads to a sustained DoS condition. This issue affects Junos OS Evolved:

  • All versions before 20.4R3-S9-EVO,
  • from 21.2-EVO before 21.2R3-S7-EVO,
  • from 21.3-EVO before 21.3R3-S5-EVO,
  • from 21.4-EVO before 21.4R3-S6-EVO,
  • from 22.1-EVO before 22.1R3-S4-EVO,
  • from 22.2-EVO before 22.2R3-S3-EVO,
  • from 22.3-EVO before 22.3R3-S3-EVO,
  • from 22.4-EVO before 22.4R3-EVO,
  • from 23.2-EVO before 23.2R2-EVO.

Affected products

2
  • Juniper Networks/Junos OS Evolvedllm-fuzzy2 versions
    >=20.4-R1, <20.4R3-S9-EVO; >=21.2-EVO, <21.2R3-S7-EVO; >=21.3-EVO, <21.3R3-S5-EVO; >=21.4-EVO, <21.4R3-S6-EVO; >=22.1-EVO, <22.1R3-S4-EVO; >=22.2-EVO, <22.2R3-S3-EVO; >=22.3-EVO, <22.3R3-S3-EVO; >=22.4-EVO, <22.4R3-EVO; >=23.2-EVO, <23.2R2-EVO+ 1 more
    • (no CPE)range: >=20.4-R1, <20.4R3-S9-EVO; >=21.2-EVO, <21.2R3-S7-EVO; >=21.3-EVO, <21.3R3-S5-EVO; >=21.4-EVO, <21.4R3-S6-EVO; >=22.1-EVO, <22.1R3-S4-EVO; >=22.2-EVO, <22.2R3-S3-EVO; >=22.3-EVO, <22.3R3-S3-EVO; >=22.4-EVO, <22.4R3-EVO; >=23.2-EVO, <23.2R2-EVO
    • (no CPE)range: 0

Patches

Vulnerability mechanics

References

1

News mentions

0

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