| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE ID | CVE-2020-8252 |
| CWE ID | CWE-120 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Node.js Server applications / Web servers |
| Vendor | Node.js Foundation |
This security advisory describes one high risk vulnerability.
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]
CVE-ID: CVE-2020-8252
CWE-ID:
CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Exploit availability: No
DescriptionThe vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
The vulnerability exists due to incorrect validation of realpath in libuv. The library incorrectly determines the buffer size, which can result in a buffer overflow if the resolved path is longer than 256 bytes. A remote attacker can pass an overly long path to the application that is using the library, trigger memory corruption and execute arbitrary code on the system.
Install updates from vendor's website.
Node.js: 10.0.0, 10.1.0, 10.2.0, 10.2.1, 10.3.0, 10.4.0, 10.4.1, 10.5.0, 10.6.0, 10.7.0, 10.8.0, 10.9, 10.9.0, 10.10.0, 10.11.0, 10.12.0, 10.13.0, 10.14.0, 10.14.1, 10.14.2, 10.15.0, 10.15.1, 10.15.2, 10.15.3, 10.16.0, 10.16.1, 10.16.2, 10.16.3, 10.17.0, 10.18.0, 10.18.1, 10.19.0, 10.20.0, 10.20.1, 10.21.0, 10.22.0, 11.0.0, 11.1.0, 11.2.0, 11.3.0, 11.4.0, 11.5.0, 11.6.0, 11.7.0, 11.8.0, 11.9.0, 11.10.0, 11.10.1, 11.11.0, 11.12.0, 11.13.0, 11.14.0, 11.15.0, 12.0.0, 12.1.0, 12.2.0, 12.3.0, 12.3.1, 12.4.0, 12.5.0, 12.6.0, 12.7.0, 12.8.0, 12.8.1, 12.9.0, 12.9.1, 12.10.0, 12.11.0, 12.11.1, 12.12.0, 12.13.0, 12.13.1, 12.14.0, 12.14.1, 12.15.0, 12.16.0, 12.16.1, 12.16.2, 12.16.3, 12.17.0, 12.18.0, 12.18.1, 12.18.2, 12.18.3, 13.0.0, 13.0.1, 13.1.0, 13.2.0, 13.3.0, 13.4.0, 13.5.0, 13.6.0, 13.7.0, 13.8.0, 13.9.0, 13.10.0, 13.10.1, 13.11.0, 13.12.0, 13.13.0, 13.14.0, 14.0.0, 14.1.0, 14.2.0, 14.3.0, 14.4.0, 14.5.0, 14.6.0, 14.7.0, 14.8.0
CPEhttps://nodejs.org/en/blog/vulnerability/september-2020-security-releases/
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.