CVE-2019-0049

Vulnérabilité non évaluée dans Junos OS (Juniper Networks)

CVSS 0.0 · Non évaluée

EPSS 1.5%

Juniper Networks•Junos OS•Versions : 17.2 versions prior to 17.2R3, 16.2 versions prior to 16.2R2-S9, 16.1 versions prior to 16.1R7-S3, 18.2 versions prior to 18.2R2, 18.1 versions prior to 18.1R3-S2, 17.3 versions prior to 17.3R3-S2, 18.2X75 versions prior to 18.2X75-D12 and 18.2X75-D30, 17.4 versions prior to 17.4R1-S7 to 17.4R2-S2 and to 17.4R3, 17.1 versions prior to 17.1R3, 18.3 versions prior to 18.3R1-S4 and 18.3R2, 17.2X75 versions prior to 17.2X75-D105

Description

On Junos devices with the BGP graceful restart helper mode enabled or the BGP graceful restart mechanism enabled, a certain sequence of BGP session restart on a remote peer that has the graceful restart mechanism enabled may cause the local routing protocol daemon (RPD) process to crash and restart. Repeated crashes of the RPD process can cause prolonged Denial of Service (DoS). Graceful restart helper mode for BGP is enabled by default. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS: 16.1 versions prior to 16.1R7-S3; 16.2 versions prior to 16.2R2-S9; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R3; 17.2X75 versions prior to 17.2X75-D105; 17.3 versions prior to 17.3R3-S2; 17.4 versions prior to 17.4R1-S7, 17.4R2-S2, 17.4R3; 18.1 versions prior to 18.1R3-S2; 18.2 versions prior to 18.2R2; 18.2X75 versions prior to 18.2X75-D12, 18.2X75-D30; 18.3 versions prior to 18.3R1-S4, 18.3R2. Junos OS releases prior to 16.1R1 are not affected.

Gravité et risque d'exploitation

CVE-2019-0049 obtient un score CVSS de 0.0/10, soit une gravité non évaluée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 1.54 %, ce qui la place devant 74.5 % des CVE référencées.

Que faire ?

Vérifiez si Junos OS (versions 17.2 versions prior to 17.2R3, 16.2 versions prior to 16.2R2-S9, 16.1 versions prior to 16.1R7-S3, 18.2 versions prior to 18.2R2, 18.1 versions prior to 18.1R3-S2, 17.3 versions prior to 17.3R3-S2, 18.2X75 versions prior to 18.2X75-D12 and 18.2X75-D30, 17.4 versions prior to 17.4R1-S7 to 17.4R2-S2 and to 17.4R3, 17.1 versions prior to 17.1R3, 18.3 versions prior to 18.3R1-S4 and 18.3R2, 17.2X75 versions prior to 17.2X75-D105) est présent sur votre parc.
Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références

https://kb.juniper.net/JSA10943