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CVE-2019-0049

Junos OS: RPD process crashes when BGP peer restarts

HIGH
7.5
CVSS Score
Published: July 11, 2019 at 07:40 PM UTC
Updated: June 17, 2026 at 02:07 AM UTC
1 product affected across 1 vendorJunos

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Severity
HIGH7.5
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Junos· Juniper Networks
95%
v < 16.1R7-S3v < 16.2R2-S9v < 17.1R3v < 17.2R3v < 17.2X75-D105v < 17.3R3-S2v < 17.4R1-S7v < 18.1R3-S2v < 18.2R2v < 18.2X75-D12v < 18.3R1-S416.116.1 r116.1 r216.1 r316.1 r3-s1016.1 r3-s1116.1 r416.1 r516.1 r616.216.2 r116.2 r216.2 r2-s116.2 r2-s216.2 r2-s516.2 r2-s616.2 r2-s716.2 r2-s817.117.1 r117.1 r2-s117.1 r2-s1017.1 r2-s217.1 r2-s317.1 r2-s417.1 r2-s517.1 r2-s617.1 r2-s717.217.2 r117.2 r1-s217.2 r1-s417.2 r1-s717.2 r217.2 r2-s617.2x7517.2x75 d10217.2x75 d9217.317.3 r117.3 r217.3 r2-s117.3 r2-s217.3 r3-s117.417.4 r117.4 r1-s117.4 r1-s217.4 r1-s417.4 r1-s617.4 r217.4 r2-s118.118.1 r118.1 r218.1 r2-s118.1 r2-s218.1 r318.218.2 r118.2 r1-s318.2 r1-s418.2 r1-s518.2 r2-s118.2x7518.2x75 d2018.318.3 r118.3 r1-s118.3 r1-s218.3 r1-s3
Affected range stops below 16.1R7-S3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.2R2-S9, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.1R3, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.2R3, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.2X75-D105, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.3R3-S2, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.4R1-S7, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.1R3-S2, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.2R2, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.2X75-D12, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.3R1-S4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
https://kb.juniper.net/JSA10943

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-404NVD-CWE-noinfo

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