Improper handling of exceptional conditions in Junos OS - CVE-2023-36831
Published: July 16, 2023
Vulnerability identifier: #VU78280
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-2023-36831
CWE-ID: CWE-755
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 improper handling of errors in the UTM (Unified Threat Management) Web-Filtering feature. A remote attacker can cause a jbuf memory leak to occur when accessing certain websites, eventually leading to a Denial of Service (DoS) condition
Affected software
Junos OS
How to mitigate CVE-2023-36831
Install updates from vendor's website.
Junos OS - addressed in versions 22.2R3, 22.3R2-S1, 22.3R3, 22.4R1-S2, 22.4R2, 23.1R1