SB2020082609 - Multiple vulnerabilities in F5 BIG-IP products

Description

This security bulletin contains information about 2 vulnerabilities.

1) Memory leak (CVE-ID: CVE-2020-5926)

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 DoS attack on the target system.

The vulnerability exists due memory leak in Virtual server using the SIP ALG profile. A remote attacker can send specially crafted SIP messages that contain a multi-part MIME payload and perform denial of service attack.

2) Input validation error (CVE-ID: CVE-2020-5925)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/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 to insufficient validation of user-supplied input in User Datagram Protocol (UDP). A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://support.f5.com/csp/article/K42830212
• https://support.f5.com/csp/article/K45421311