Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-26262 |
CWE-ID | CWE-254 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Ubuntu Operating systems & Components / Operating system coturn (Ubuntu package) Operating systems & Components / Operating system package or component |
Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU49937
Risk: Medium
CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-26262
CWE-ID:
CWE-254 - Security Features
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists in the way the Coturn handles CONNECT requests with XOR-PEER-ADDRESS set to "0.0.0.0". A remote attacker can send specially crafted request to the affected server and force Coturn relay on the loopback addresses, such as 127.x.x.x and ::1, which is disabled by default.
Update the affected package coturn to the latest version.
Vulnerable software versionsUbuntu: 16.04 - 20.10
coturn (Ubuntu package): before 4.5.1.3-1ubuntu0.1
External linkshttp://ubuntu.com/security/notices/USN-4690-1
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.