Race condition in Junos OS - CVE-2020-1641
Published: July 13, 2020
Vulnerability identifier: #VU29691
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1641
CWE-ID: CWE-362
Exploitation vector: Adjecent network
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 race condition within the LLDP implementation. A remote attacker on the local network can send a specially crafted LLDP packet and cause a denial of service condition on the target system.
Affected software
Junos OS
How to mitigate CVE-2020-1641
Install updates from vendor's website.
Junos OS - addressed in versions 12.3X48-D95, 12.3R12-S15, 15.1X49-D200, 15.1X53-D593, 15.1R7-S6, 16.1R7-S7, 17.1R2-S11, 17.1R3-S2, 17.2R1-S9, 17.2R3-S3, 17.3R2-S5, 17.3R3-S6, 17.4R2-S4, 17.4R3, 18.1R3-S5, 18.2X75-D12, 18.2X75-D33, 18.2X75-D50, 18.2X75-D420, 18.2R2-S7, 18.2R3, 18.3R1-S7, 18.3R2-S3, 18.3R3, 18.4R1-S5, 18.4R2, 19.1R1-S4, 19.1R2, 19.2R1