Debian update for coturn
| 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 |
coturn (Debian package) Operating systems & Components / Operating system package or component |
| Vendor | Debian |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Security features bypass
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 coturn package to version 4.5.1.1-1.1+deb10u2.
Vulnerable software versionscoturn (Debian package): 4.0.0.0-1 - 4.5.1.3-1+b1
External linkshttp://www.debian.org/security/2021/dsa-4829
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.
