The HTTP parser in all current versions of Node.js ignores spaces in the `Content-Length` header, allowing input such as `Content-Length: 1 2` to be interpreted as having a value of `12`. The HTTP specification does not allow for spaces in the `Content-Length` value and the Node.js HTTP parser has been brought into line on this particular difference. The security risk of this flaw to Node.js users is considered to be VERY LOW as it is difficult, and may be impossible, to craft an attack that makes use of this flaw in a way that could not already be achieved by supplying an incorrect value for `Content-Length`. Vulnerabilities may exist in user-code that make incorrect assumptions about the potential accuracy of this value compared to the actual length of the data supplied. Node.js users crafting lower-level HTTP utilities are advised to re-check the length of any input supplied after parsing is complete.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: nodejs

Published: 2018-05-17T14:00:00Z

Updated: 2024-09-17T01:06:04.658Z

Reserved: 2018-02-15T00:00:00

Link: CVE-2018-7159

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-05-17T14:29:00.653

Modified: 2023-11-07T03:00:58.370

Link: CVE-2018-7159

cve-icon Redhat

Severity : Low

Publid Date: 2018-03-08T00:00:00Z

Links: CVE-2018-7159 - Bugzilla