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High severity7.5NVD Advisory· Published Jan 13, 2023· Updated Jun 17, 2026

CVE-2023-22400

CVE-2023-22400

Description

An Uncontrolled Resource Consumption vulnerability in the PFE management daemon (evo-pfemand) of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause an FPC crash leading to a Denial of Service (DoS). When a specific SNMP GET operation or a specific CLI command is executed this will cause a GUID resource leak, eventually leading to exhaustion and result in an FPC crash and reboot. GUID exhaustion will trigger a syslog message like one of the following for example: evo-pfemand[]: get_next_guid: Ran out of Guid Space ... evo-aftmand-zx[]: get_next_guid: Ran out of Guid Space ... This leak can be monitored by running the following command and taking note of the value in the rightmost column labeled Guids: user@host> show platform application-info allocations app evo-pfemand | match "IFDId|IFLId|Context" Node Application Context Name Live Allocs Fails Guids re0 evo-pfemand net::juniper::interfaces::IFDId 0 3448 0 3448 re0 evo-pfemand net::juniper::interfaces::IFLId 0 561 0 561 user@host> show platform application-info allocations app evo-pfemand | match "IFDId|IFLId|Context" Node Application Context Name Live Allocs Fails Guids re0 evo-pfemand net::juniper::interfaces::IFDId 0 3784 0 3784 re0 evo-pfemand net::juniper::interfaces::IFLId 0 647 0 647 This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S3-EVO; 21.1-EVO version 21.1R1-EVO and later versions; 21.2-EVO versions prior to 21.2R3-S4-EVO; 21.3-EVO version 21.3R1-EVO and later versions; 21.4-EVO versions prior to 21.4R2-EVO.

Affected products

40
  • Juniper Networks/OS Evolved39 versions
    cpe:2.3:o:juniper:junos_os_evolved:20.4:-:*:*:*:*:*:*+ 38 more
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:r2-s3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:r3-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:20.4:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.1:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.1:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.1:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.1:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.1:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:r3-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:r3-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:r3-s3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.2:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.3:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.3:r1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.3:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.3:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.3:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.3:r3:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos_os_evolved:21.4:r1:*:*:*:*:*:*
    • (no CPE)range: <20.4R3-S3-EVO, 21.1R1-EVO and later, <21.2R3-S4-EVO, 21.3R1-EVO and later, <21.4R2-EVO
    • (no CPE)range: unspecified
  • Juniper Networks/evo-pfemandllm-create
    Range: <20.4R3-S3-EVO, 21.1R1-EVO and later, <21.2R3-S4-EVO, 21.3R1-EVO and later, <21.4R2-EVO

Patches

Vulnerability mechanics

References

1

News mentions

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