Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2019-0028

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
10/04/2019
Last modified:
24/01/2022

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r3-s10:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r5-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r6-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1:r7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1x65:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1x65:d30:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1x65:d35:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.1x65:d40:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos:16.2:r2-s1:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools