CVE detail

CVE-2020-1655 — CVE-2020-1655

Published 2020-07-17 · Modified 2026-06-17 · Vendor juniper · Product junos · Source nvd
MEDIUM
severity
CVSS-derived band
5.3
CVSS v3
0–10 scale
0.0104
EPSS probability
exploitation probability, 30d
61.0%
EPSS percentile
percentile vs all CVEs
NOT LISTED
CISA KEV
known exploited catalog

Description

When a device running Juniper Networks Junos OS with MPC7, MPC8, or MPC9 line cards installed and the system is configured for inline IP reassembly, used by L2TP, MAP-E, GRE, and IPIP, the packet forwarding engine (PFE) will become disabled upon receipt of large packets requiring fragmentation, generating the following error messages: [LOG: Err] MQSS(0): WO: Packet Error - Error Packets 1, Connection 29 [LOG: Err] eachip_hmcif_rx_intr_handler(7259): EA[0:0]: HMCIF Rx: Injected checksum error detected on WO response - Chunk Address 0x0 [LOG: Err] MQSS(0): DRD: RORD1: CMD reorder ID error - Command 11, Reorder ID 1838, QID 0 [LOG: Err] MQSS(0): DRD: UNROLL0: HMC chunk length error in stage 5 - Chunk Address: 0x4321f3 [LOG: Err] MQSS(0): DRD: UNROLL0: HMC chunk address error in stage 5 - Chun

Remediation

vendor remediation guidance

The following software releases have been updated to resolve this specific issue: Junos OS 17.2R3-S4, 17.3R3-S8, 17.4R2-S10, 17.4R3-S2, 18.1R3-S10, 18.2R3-S3, 18.2X75-D41, 18.2X75-D430, 18.2X75-D65, 18.3R1-S7, 18.3R2-S4, 18.3R3-S1, 18.4R1-S7, 18.4R2-S4, 18.4R3, 19.1R1-S5, 19.1R2-S1, 19.1R3, 19.2R1-S4, 19.2R2, 19.3R2-S2, 19.3R3, 19.4R1, 19.4R2, 20.1R1, and all subsequent releases.

workarounds

There are no available workarounds for this issue.

ProductVulnerable rangeFixed versionAdvisory
Juniper Networks Junos OS>=17.2<17.2R3-S417.2R3-S4advisory ↗
Juniper Networks Junos OS>=17.3<17.3R3-S817.3R3-S8advisory ↗
Juniper Networks Junos OS>=17.4<17.4R2-S10, 17.4R3-S217.4R2-S10, 17.4R3-S2advisory ↗
Juniper Networks Junos OS>=18.1<18.1R3-S1018.1R3-S10advisory ↗
Juniper Networks Junos OS>=18.2<18.2R3-S318.2R3-S3advisory ↗
Juniper Networks Junos OS>=18.2X75<18.2X75-D41, 18.2X75-D430, 18.2X75-D6518.2X75-D41, 18.2X75-D430, 18.2X75-D65advisory ↗
Juniper Networks Junos OS>=18.3<18.3R1-S7, 18.3R2-S4, 18.3R3-S118.3R1-S7, 18.3R2-S4, 18.3R3-S1advisory ↗
Juniper Networks Junos OS>=18.4<18.4R1-S7, 18.4R2-S4, 18.4R318.4R1-S7, 18.4R2-S4, 18.4R3advisory ↗
Juniper Networks Junos OS>=19.1<19.1R1-S5, 19.1R2-S1, 19.1R319.1R1-S5, 19.1R2-S1, 19.1R3advisory ↗
Juniper Networks Junos OS>=19.2<19.2R1-S4, 19.2R219.2R1-S4, 19.2R2advisory ↗
Juniper Networks Junos OS>=19.3<19.3R2-S2, 19.3R319.3R2-S2, 19.3R3advisory ↗

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.