GHSA-4f68-49qq-h392

Improper certificate validation in em-imap

Source: GitHub Advisory Database (reviewed) High CVE-2020-13163

Packages

Ecosystem	Package	Affected	Fixed in
RubyGems	em-imap	<= 0.5	no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

em-imap 0.5 and earlier use the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2020-13163 advisory
https://github.com/ConradIrwin/em-imap/issues/25 web
https://github.com/ConradIrwin/em-imap package
https://securitylab.github.com/advisories/GHSL-2020-095-conradirwin-em-imap advisory