Resource management error in Junos OS - CVE-2019-0049
Published: July 11, 2019
Vulnerability identifier: #VU19145
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-0049
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a certain sequence of BGP session restart on a remote peer may cause the local routing protocol daemon (RPD) process to crash and restart. A remote attacker can repeatedly crash the RPD process and cause prolonged denial of service attack.
This vulnerability affects only devices with enabled the BGP graceful restart helper mode or the BGP graceful restart mechanism.Affected software
Junos OS
How to mitigate CVE-2019-0049
Install updates from vendor's website.
Junos OS - addressed in versions 16.1R7-S3, 16.2R2-S9, 17.1R3, 17.2X75-D105, 17.2R3, 17.3R3-S2, 17.4R1-S7, 17.4R2-S2, 17.4R3, 18.1R3-S2, 18.2X75-D12, 18.2X75-D30, 18.2R2, 18.3R1-S4, 18.3R2