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CVE-2017-2312

Vulnérabilité non évaluée dans Junos OS with LDP enabled (Juniper Networks)

CVSS 0.0 · Non évaluée
EPSS 1.6%
Juniper Networks•Junos OS with LDP enabled•Versions : 15.1 prior to 15.1F2-S14, 15.1F6-S4, 15.1F7, 15.1R4-S7, 15.1R5, 15.1X49 before 15.1X49-D70, 16.1 before 16.1R2, 15.1X53 before 15.1X53-D230, 15.1X53-D63, 15.1X53-D70, 14.2 prior to 14.2R7-S6 or 14.2R8, 13.3 prior to 13.3R10, 16.2R1 and all subsequent releases have a resolution for this vulnerability, 14.1 prior to 14.1R8

Description

On Juniper Networks devices running Junos OS affected versions and with LDP enabled, a specific LDP packet destined to the RE (Routing Engine) will consume a small amount of the memory allocated for the rpd (routing protocol daemon) process. Over time, repeatedly receiving this type of LDP packet(s) will cause the memory to exhaust and the rpd process to crash and restart. It is not possible to free up the memory that has been consumed without restarting the rpd process. This issue affects Junos OS based devices with either IPv4 or IPv6 LDP enabled via the [protocols ldp] configuration (the native IPv6 support for LDP is available in Junos OS 16.1 and higher). The interface on which the packet arrives needs to have LDP enabled. The affected Junos versions are: 13.3 prior to 13.3R10; 14.1 prior to 14.1R8; 14.2 prior to 14.2R7-S6 or 14.2R8; 15.1 prior to 15.1F2-S14, 15.1F6-S4, 15.1F7, 15.1R4-S7, 15.1R5; 15.1X49 before 15.1X49-D70; 15.1X53 before 15.1X53-D230, 15.1X53-D63, 15.1X53-D70; 16.1 before 16.1R2. 16.2R1 and all subsequent releases have a resolution for this vulnerability.

Gravité et risque d'exploitation

CVE-2017-2312 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 1.57 %, ce qui la place devant 75.0 % des CVE référencées.

Que faire ?

  • Vérifiez si Junos OS with LDP enabled (versions 15.1 prior to 15.1F2-S14, 15.1F6-S4, 15.1F7, 15.1R4-S7, 15.1R5, 15.1X49 before 15.1X49-D70, 16.1 before 16.1R2, 15.1X53 before 15.1X53-D230, 15.1X53-D63, 15.1X53-D70, 14.2 prior to 14.2R7-S6 or 14.2R8, 13.3 prior to 13.3R10, 16.2R1 and all subsequent releases have a resolution for this vulnerability, 14.1 prior to 14.1R8) 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

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