Memory leak in Junos OS - CVE-2021-0293
Published: July 15, 2021
Vulnerability identifier: #VU54911
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-0293
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform DoS attack on the target system.
The vulnerability exists due memory leak each time the CLI command 'show system connections extensive' is executed. A local user can force the application to leak memory and perform denial of service attack.
Affected software
Junos OS
How to mitigate CVE-2021-0293
Install updates from vendor's website.
Junos OS - addressed in versions 18.2R2-S8, 18.2R3-S7, 18.3R3-S4, 18.4R1-S8, 18.4R2-S6, 18.4R3-S7, 19.1R1-S6, 19.1R2-S2, 19.1R3-S4, 19.2R1-S6, 19.2R3-S2, 19.3R2-S6, 19.3R3-S1, 19.3R3-S2, 19.4R1-S4, 19.4R2-S3, 19.4R3-S1, 20.1R2, 20.2R2-S1, 20.2R3, 20.3R1-S1, 20.3R2, 20.4R1