CVE-2021-31376

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Summary

CVECVE-2021-31376
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-10-19 19:15:00 UTC
Updated2021-10-25 16:20:00 UTC
DescriptionAn Improper Input Validation vulnerability in Packet Forwarding Engine manager (FXPC) process of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending specific DHCPv6 packets to the device and crashing the FXPC service. Continued receipt and processing of this specific packet will create a sustained Denial of Service (DoS) condition. This issue affects only the following platforms in ACX Series: ACX500, ACX1000, ACX1100, ACX2100, ACX2200, ACX4000, ACX5048, ACX5096 devices. Other ACX platforms are not affected from this issue. This issue affects Juniper Networks Junos OS on ACX500, ACX1000, ACX1100, ACX2100, ACX2200, ACX4000, ACX5048, ACX5096: 18.4 version 18.4R3-S7 and later versions prior to 18.4R3-S8. This issue does not affect: Juniper Networks Junos OS 18.4 versions prior to 18.4R3-S7 on ACX500, ACX1000, ACX1100, ACX2100, ACX2200, ACX4000, ACX5048, ACX5096.

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Juniper Acx1000 - All All All
Hardware Juniper Acx1100 - All All All
Hardware Juniper Acx2100 - All All All
Hardware Juniper Acx2200 - All All All
Hardware Juniper Acx4000 - All All All
Hardware Juniper Acx500 - All All All
Hardware Juniper Acx5048 - All All All
Hardware Juniper Acx5096 - All All All
Operating System Juniper Junos 18.4 r3-s7 All All

References

ReferenceSourceLinkTags
2021-10 Security Bulletin: Junos OS: ACX Series: Packet Forwarding Engine manager (FXPC) process crashes when processing DHCPv6 packets (CVE-2021-31376) - Juniper Networks CONFIRM kb.juniper.net
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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