Resource Exhaustion Affecting ruby:3.3/rubygem-json package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

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  • Snyk IDSNYK-RHEL9-RUBY-9903469
  • published29 Apr 2025
  • disclosed28 Apr 2025

Introduced: 28 Apr 2025

NewCVE-2025-43857  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-405  (opens in a new tab)
CWE-770  (opens in a new tab)
CWE-789  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 ruby:3.3/rubygem-json.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby:3.3/rubygem-json package and not the ruby:3.3/rubygem-json package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5, there is a possibility for denial of service by memory exhaustion when net-imap reads server responses. At any time while the client is connected, a malicious server can send can send a "literal" byte count, which is automatically read by the client's receiver thread. The response reader immediately allocates memory for the number of bytes indicated by the server response. This should not be an issue when securely connecting to trusted IMAP servers that are well-behaved. It can affect insecure connections and buggy, untrusted, or compromised servers (for example, connecting to a user supplied hostname). This issue has been patched in versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5.

CVSS Base Scores

version 3.1