Buffer overflow in big3d agent in F5 BIG-IP DNS
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-22982 |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
BIG-IP DNS Hardware solutions / Routers & switches, VoIP, GSM, etc BIG-IP GTM Hardware solutions / Security hardware applicances |
| Vendor | F5 Networks |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Buffer overflow
EUVDB-ID: #VU50617
Risk: Medium
CVSSv3.1: 4.4 [CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-22982
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in big3d. A remote user can send specially crafted data to the big3d agent, trigger a buffer overflow and crash the agent.
Install updates from vendor's website.
Vulnerable software versionsBIG-IP DNS: 12.1.0 - 13.1.0.3
BIG-IP GTM: 11.6.1 - 11.6.5.2
External linkshttp://support.f5.com/csp/article/K72708443
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
