CVE-2021-22883 Information

Description

Node.js before 10.24.0 12.21.0 14.16.0 and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an ‘unknownProtocol’ are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system then the server is unable to accept new connections and prevent the process also from opening e.g. a file. If no file descriptor limit is configured then this lead to an excessive memory usage and cause the system to run out of memory.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://hackerone.com/reports/1043360 https://nodejs.org/en/blog/vulnerability/february-2021-security-releases/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F45Y7TXSU33MTKB6AGL2Q5V5ZOCNPKOG/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E4FRS5ZVK4ZQ7XIJQNGIKUXG2DJFHLO7/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HSYFUGKFUSZ27M5TEZ3FKILWTWFJTFAZ/ https://security.netapp.com/advisory/ntap-20210416-0001/ https://www.oracle.com/security-alerts/cpuApr2021.html https://www.oracle.com//security-alerts/cpujul2021.html https://www.oracle.com/security-alerts/cpuoct2021.html https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5