SB2020082605 - Denial of service when processing RADIUS authentication requests in BIG-IP APM
Published: August 26, 2020
Security Bulletin ID
SB2020082605
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory leak (CVE-ID: CVE-2020-5924)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 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:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due memory leak during RADIUS authentication, when username is not set. A remote attacker can send specially crafted request to the device and consume excessive memory resources.
Remediation
Install update from vendor's website.