Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-33516 |
CWE-ID | CWE-350 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Ubuntu Operating systems & Components / Operating system libgupnp-1.2-0 (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: #VU54033
Risk: Medium
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-33516
CWE-ID:
CWE-350 - Reliance on Reverse DNS Resolution for a Security-Critical Action
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform DNS rebinding attacks.
The vulnerability exists due to a logic issue in GUPnP. A remote attacker can trick a victim's browser into triggering actions against local UPnP services implemented using this library and gain access to sensitive information (e.g. data exfiltration) or tamper with data.
Update the affected package gupnp to the latest version.
Vulnerable software versionsUbuntu: 20.04 - 21.04
libgupnp-1.2-0 (Ubuntu package): before 1.2.4-1ubuntu0.21.04.1
External linkshttp://ubuntu.com/security/notices/USN-4970-1
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.