Denial of service in F5 BIG-IQ Centralized Management libssh2 component
| Risk | Medium |
| Patch available | NO |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-22218 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
BIG-IQ Centralized Management Server applications / Remote management servers, RDP, SSH |
| Vendor | F5 Networks |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU80523
Risk: Medium
CVSSv4.0: 6.6 [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]
CVE-ID: CVE-2020-22218
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
Description The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to usage of an uninitialized value within the _libssh2_transport_read() function in transport.c. A remote attacker can pass specially crafted input to the application, trigger memory corruption and perform a denial of service (DoS) attack.
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsBIG-IQ Centralized Management: 8.0.0 - 8.3.0
CPE2.3- cpe:2.3:a:f5_networks:big-iq:8.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:f5_networks:big-iq:8.0.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:f5_networks:big-iq:8.1.0:*:*:*:*:*:*:*
https://my.f5.com/manage/s/article/K000138219
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
