Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-23004 |
CWE-ID | CWE-400 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software |
BIG-IP Hardware solutions / Firmware BIG-IP DDHD Hardware solutions / Firmware BIG-IP SSLO Hardware solutions / Firmware BIG-IP LTM Hardware solutions / Security hardware applicances BIG-IP AFM Hardware solutions / Security hardware applicances BIG-IP Analytics Hardware solutions / Security hardware applicances BIG-IP APM Hardware solutions / Security hardware applicances BIG-IP ASM Hardware solutions / Security hardware applicances BIG-IP FPS Hardware solutions / Security hardware applicances BIG-IP GTM Hardware solutions / Security hardware applicances BIG-IP PEM Hardware solutions / Security hardware applicances BIG-IP AAM Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP DNS Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP Link Controller Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP Advanced WAF Client/Desktop applications / Antivirus software/Personal firewalls |
Vendor | F5 Networks |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU51418
Risk: Medium
CVSSv4.0: [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]
CVE-ID: CVE-2021-23004
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when processing multipath TCP (MPTCP) forwarding flows on standard virtual servers without MPTCP enabled in the applied TCP profile. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsBIG-IP: 11.6.1 HF1 - 16.0.1
BIG-IP LTM: 11.6.1 HF1 - 16.0.1
BIG-IP AAM: 11.6.1 HF1 - 16.0.1
BIG-IP Advanced WAF: 11.6.1 - 16.0.1
BIG-IP AFM: 11.6.1 HF1 - 16.0.1
BIG-IP Analytics: 11.6.1 HF1 - 16.0.1
BIG-IP APM: 11.6.1 HF1 - 16.0.1
BIG-IP ASM: 11.6.1 HF1 - 16.0.1
BIG-IP DDHD: 11.6.1 - 16.0.1
BIG-IP DNS: 11.6.1 - 16.0.1
BIG-IP FPS: 11.6.1 - 16.0.1
BIG-IP GTM: 11.6.1 HF1 - 16.0.1
BIG-IP Link Controller: 11.6.1 HF1 - 16.0.1
BIG-IP PEM: 11.6.1 HF1 - 16.0.1
BIG-IP SSLO: 11.6.1 - 16.0.1
CPE2.3http://support.f5.com/csp/article/K31025212
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.