Amazon Linux 2023 Security Advisory: ALAS2023-2025-1168
Advisory Released Date: 2025-09-08
Advisory Updated Date: 2025-09-08
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. (CVE-2025-43857)
Affected Packages:
ruby3.2
Issue Correction:
Run dnf update ruby3.2 --releasever 2023.8.20250908 or dnf update --advisory ALAS2023-2025-1168 --releasever 2023.8.20250908 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
aarch64:
ruby3.2-rubygem-json-debuginfo-2.6.3-184.amzn2023.0.5.aarch64
ruby3.2-3.2.8-184.amzn2023.0.5.aarch64
ruby3.2-rubygem-bigdecimal-3.1.3-184.amzn2023.0.5.aarch64
ruby3.2-debuginfo-3.2.8-184.amzn2023.0.5.aarch64
ruby3.2-bundled-gems-3.2.8-184.amzn2023.0.5.aarch64
ruby3.2-rubygem-bigdecimal-debuginfo-3.1.3-184.amzn2023.0.5.aarch64
ruby3.2-libs-debuginfo-3.2.8-184.amzn2023.0.5.aarch64
ruby3.2-rubygem-io-console-0.6.0-184.amzn2023.0.5.aarch64
ruby3.2-rubygem-psych-5.0.1-184.amzn2023.0.5.aarch64
ruby3.2-rubygem-rbs-2.8.2-184.amzn2023.0.5.aarch64
ruby3.2-libs-3.2.8-184.amzn2023.0.5.aarch64
ruby3.2-rubygem-io-console-debuginfo-0.6.0-184.amzn2023.0.5.aarch64
ruby3.2-debugsource-3.2.8-184.amzn2023.0.5.aarch64
ruby3.2-rubygem-psych-debuginfo-5.0.1-184.amzn2023.0.5.aarch64
ruby3.2-rubygem-json-2.6.3-184.amzn2023.0.5.aarch64
ruby3.2-devel-3.2.8-184.amzn2023.0.5.aarch64
ruby3.2-rubygem-rbs-debuginfo-2.8.2-184.amzn2023.0.5.aarch64
ruby3.2-bundled-gems-debuginfo-3.2.8-184.amzn2023.0.5.aarch64
noarch:
ruby3.2-rubygem-rdoc-6.5.1.1-184.amzn2023.0.5.noarch
ruby3.2-rubygem-bundler-2.4.19-184.amzn2023.0.5.noarch
ruby3.2-rubygem-rexml-3.3.9-184.amzn2023.0.5.noarch
ruby3.2-rubygem-minitest-5.25.1-184.amzn2023.0.5.noarch
ruby3.2-rubygem-typeprof-0.21.3-184.amzn2023.0.5.noarch
ruby3.2-rubygems-devel-3.4.19-184.amzn2023.0.5.noarch
ruby3.2-rubygem-rake-13.0.6-184.amzn2023.0.5.noarch
ruby3.2-rubygem-power_assert-2.0.3-184.amzn2023.0.5.noarch
ruby3.2-rubygem-rss-0.3.1-184.amzn2023.0.5.noarch
ruby3.2-rubygems-3.4.19-184.amzn2023.0.5.noarch
ruby3.2-default-gems-3.2.8-184.amzn2023.0.5.noarch
ruby3.2-rubygem-irb-1.6.2-184.amzn2023.0.5.noarch
ruby3.2-rubygem-test-unit-3.5.7-184.amzn2023.0.5.noarch
ruby3.2-doc-3.2.8-184.amzn2023.0.5.noarch
src:
ruby3.2-3.2.8-184.amzn2023.0.5.src
x86_64:
ruby3.2-rubygem-psych-debuginfo-5.0.1-184.amzn2023.0.5.x86_64
ruby3.2-debugsource-3.2.8-184.amzn2023.0.5.x86_64
ruby3.2-debuginfo-3.2.8-184.amzn2023.0.5.x86_64
ruby3.2-rubygem-json-debuginfo-2.6.3-184.amzn2023.0.5.x86_64
ruby3.2-rubygem-psych-5.0.1-184.amzn2023.0.5.x86_64
ruby3.2-devel-3.2.8-184.amzn2023.0.5.x86_64
ruby3.2-rubygem-bigdecimal-debuginfo-3.1.3-184.amzn2023.0.5.x86_64
ruby3.2-3.2.8-184.amzn2023.0.5.x86_64
ruby3.2-rubygem-json-2.6.3-184.amzn2023.0.5.x86_64
ruby3.2-rubygem-rbs-debuginfo-2.8.2-184.amzn2023.0.5.x86_64
ruby3.2-bundled-gems-debuginfo-3.2.8-184.amzn2023.0.5.x86_64
ruby3.2-rubygem-io-console-debuginfo-0.6.0-184.amzn2023.0.5.x86_64
ruby3.2-rubygem-bigdecimal-3.1.3-184.amzn2023.0.5.x86_64
ruby3.2-libs-debuginfo-3.2.8-184.amzn2023.0.5.x86_64
ruby3.2-rubygem-io-console-0.6.0-184.amzn2023.0.5.x86_64
ruby3.2-bundled-gems-3.2.8-184.amzn2023.0.5.x86_64
ruby3.2-rubygem-rbs-2.8.2-184.amzn2023.0.5.x86_64
ruby3.2-libs-3.2.8-184.amzn2023.0.5.x86_64