cbcvebase.
CVE-2021-31377
published 2021-10-19

CVE-2021-31377: An Incorrect Permission Assignment for Critical Resource vulnerability of a certain file in the filesystem of Junos OS allows a local authenticated attacker to…

medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
An Incorrect Permission Assignment for Critical Resource vulnerability of a certain file in the filesystem of Junos OS allows a local authenticated attacker to cause routing process daemon (RPD) to crash and restart, causing a Denial of Service (DoS). Repeated actions by the attacker will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R2-S13, 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S8, 18.4R3-S7; 19.1 versions prior to 19.1R2-S3, 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R1-S1, 20.4R2.

Affected

31 ranges· showing 25
VendorProductVersion rangeFixed in
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juniper_networksjunos_os>= 15.1 < 15.1R7-S915.1R7-S9
juniper_networksjunos_os>= 17.3 < 17.3R3-S1217.3R3-S12
juniper_networksjunos_os>= 17.4 < 17.4R2-S13, 17.4R3-S517.4R2-S13, 17.4R3-S5
juniper_networksjunos_os>= 18.1 < 18.1R3-S1318.1R3-S13
juniper_networksjunos_os>= 18.2 < 18.2R3-S818.2R3-S8
juniper_networksjunos_os>= 18.3 < 18.3R3-S518.3R3-S5
juniper_networksjunos_os>= 18.4 < 18.4R2-S8, 18.4R3-S718.4R2-S8, 18.4R3-S7
juniper_networksjunos_os>= 19.1 < 19.1R2-S3, 19.1R3-S519.1R2-S3, 19.1R3-S5
juniper_networksjunos_os>= 19.2 < 19.2R3-S219.2R3-S2