Select your cookie preferences

We use cookies and similar tools to enhance your experience, provide our services, deliver relevant advertising, and make improvements. Approved third parties also use these tools to help us deliver advertising and provide certain site features.

CVE-2021-32066

Public on 2021-08-01
Modified on 2024-02-23
Description

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."

Severity
Medium
See what this means
CVSS v3 Base Score
7.4
See breakdown
Continue reading

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core ruby 2024-06-06 20:17 ALAS2-2024-2570
Amazon Linux 2 - Ruby2.6 Extra ruby 2023-08-21 20:59 ALAS2RUBY2.6-2023-004
Amazon Linux 2 - Ruby3.0 Extra ruby 2023-08-21 20:59 ALAS2RUBY3.0-2023-005

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD CVSSv2 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N
NVD CVSSv3 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N