Infinite loop in Juniper Junos OS - CVE-2019-0001
Published: January 9, 2019 / Updated: January 18, 2019
Vulnerability identifier: #VU17000
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2019-0001
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
Juniper Junos OS
Juniper Junos OS
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to an uncontrolled recursion loop in the Broadband Edge subscriber management daemon (bbe-smgd) when receipt of a malformed packet on MX Series devices with dynamic vlan configuration. A remote attacker can send trigger high CPU usage and a crash of the bbe-smgd service.
How to mitigate CVE-2019-0001
The vulnerability has been addressed in the versions 16.1R7-S1, 16.2R2-S7, 17.1R2-S10, 17.1R3, 17.2R3, 17.3R3-S1, 17.4R2, 18.1R3, 18.2R2, 18.3R1.