CVE-2019-0028 Information

Description

On Junos devices with the BGP graceful restart helper mode enabled or the BGP graceful restart mechanism enabled a 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. By simulating a specific BGP session restart an attacker can repeatedly crash the RPD process causing 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; 16.1X65 versions prior to 16.1X65-D48; 16.2 versions prior to 16.2R2-S8; 17.1 versions prior to 17.1R2-S7 17.1R3; 17.2 versions prior to 17.2R1-S7 17.2R3; 17.2X75 versions prior to 17.2X75-D92 17.2X75-D102 17.2X75-D110; 17.3 versions prior to 17.3R2-S2 17.3R3; 17.4 versions prior to 17.4R1-S4 17.4R2; 18.1 versions prior to 18.1R2. Junos OS releases prior to 16.1R1 are not affected.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.securityfocus.com/bid/107892 https://kb.juniper.net/JSA10932

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5