CVE-2020-15694

Description

In Nim 1.2.4, the standard library httpClient fails to properly validate the server response. For example, httpClient.get().contentLength() does not raise any error if a malicious server provides a negative Content-Length.

References

https://nim-lang.org/blog/2020/07/30/versions-126-and-108-released.html

https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/httpclient.nim#L241

https://consensys.net/diligence/vulnerabilities/nim-httpclient-header-crlf-injection/

http://www.openwall.com/lists/oss-security/2021/02/04/2

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3