CVE-2021-0286

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Summary

CVECVE-2021-0286
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-07-15 20:15:00 UTC
Updated2021-10-25 15:20:00 UTC
DescriptionA vulnerability in the handling of exceptional conditions in Juniper Networks Junos OS Evolved (EVO) allows an attacker to send specially crafted packets to the device, causing the Advanced Forwarding Toolkit manager (evo-aftmand-bt or evo-aftmand-zx) process to crash and restart, impacting all traffic going through the FPC, resulting in a Denial of Service (DoS). Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. Following messages will be logged prior to the crash: Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:32710470974358 label:1089551617 for session:18 probe:35 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:19241453497049 label:1089551617 for session:18 probe:37 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:19241453497049 label:1089551617 for session:18 probe:44 Feb 2 10:14:39 fpc0 evo-aftmand-bt[16263]: [Error] Nexthop: Failed to get fwd nexthop for nexthop:32710470974358 label:1089551617 for session:18 probe:47 Feb 2 10:14:39 fpc0 audit[16263]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 pid=16263 comm="EvoAftManBt-mai" exe="/usr/sbin/evo-aftmand-bt" sig=11 Feb 2 10:14:39 fpc0 kernel: audit: type=1701 audit(1612260879.272:17): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=16263 comm="EvoAftManBt-mai" exe="/usr/sbin/evo-aftmand-bt" sig=1 This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-EVO; 21.1 versions prior to 21.1R2-EVO.

Risk And Classification

Problem Types: CWE-754

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Juniper Junos Evolved 19.2 r1 All All
Operating System Juniper Junos Evolved 19.2 r2 All All
Operating System Juniper Junos Evolved 19.3 r1 All All
Operating System Juniper Junos Evolved 19.3 r2 All All
Operating System Juniper Junos Evolved 19.4 r1 All All
Operating System Juniper Junos Evolved 19.4 r2 All All
Operating System Juniper Junos Evolved 19.4 r2-s1 All All
Operating System Juniper Junos Evolved 20.1 - All All
Operating System Juniper Junos Evolved 20.1 r1 All All
Operating System Juniper Junos Evolved 20.1 r1-s1 All All
Operating System Juniper Junos Evolved 20.2 - All All
Operating System Juniper Junos Evolved 20.3 - All All
Operating System Juniper Junos Evolved 20.3 r1 All All
Operating System Juniper Junos Evolved 20.4 r1 All All
Operating System Juniper Junos Evolved 21.1 r1 All All
Operating System Juniper Junos Os Evolved 19.2 r1 All All
Operating System Juniper Junos Os Evolved 19.2 r2 All All
Operating System Juniper Junos Os Evolved 19.3 r1 All All
Operating System Juniper Junos Os Evolved 19.3 r2 All All
Operating System Juniper Junos Os Evolved 19.4 r1 All All
Operating System Juniper Junos Os Evolved 19.4 r2 All All
Operating System Juniper Junos Os Evolved 19.4 r2-s1 All All
Operating System Juniper Junos Os Evolved 20.1 - All All
Operating System Juniper Junos Os Evolved 20.1 r1 All All
Operating System Juniper Junos Os Evolved 20.1 r1-s1 All All
Operating System Juniper Junos Os Evolved 20.2 - All All
Operating System Juniper Junos Os Evolved 20.3 - All All
Operating System Juniper Junos Os Evolved 20.3 r1 All All
Operating System Juniper Junos Os Evolved 20.4 r1 All All
Operating System Juniper Junos Os Evolved 21.1 r1 All All

References

ReferenceSourceLinkTags
2021-07 Security Bulletin: Junos OS Evolved: Specially crafted packets may cause the AFT manager process to crash and restart (CVE-2021-0286) - 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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