Vulmon
Amazon Linux 2 Security Advisory: ALAS-2021-1641
Advisory Release Date: 2021-05-20 16:29 Pacific
Advisory Updated Date: 2021-05-24 18:00 Pacific
The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar to CVE-2013-0269, but does not rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead to creation of a malicious object within the interpreter, with adverse effects that are application-dependent. (CVE-2020-10663)
An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack. (CVE-2020-25613)
Affected Packages:
ruby
Issue Correction:
Run yum update ruby to update your system.
aarch64:
ruby-2.0.0.648-36.amzn2.0.2.aarch64
ruby-devel-2.0.0.648-36.amzn2.0.2.aarch64
ruby-libs-2.0.0.648-36.amzn2.0.2.aarch64
rubygem-bigdecimal-1.2.0-36.amzn2.0.2.aarch64
rubygem-io-console-0.4.2-36.amzn2.0.2.aarch64
rubygem-json-1.7.7-36.amzn2.0.2.aarch64
rubygem-psych-2.0.0-36.amzn2.0.2.aarch64
ruby-tcltk-2.0.0.648-36.amzn2.0.2.aarch64
ruby-debuginfo-2.0.0.648-36.amzn2.0.2.aarch64
i686:
ruby-2.0.0.648-36.amzn2.0.2.i686
ruby-devel-2.0.0.648-36.amzn2.0.2.i686
ruby-libs-2.0.0.648-36.amzn2.0.2.i686
rubygem-bigdecimal-1.2.0-36.amzn2.0.2.i686
rubygem-io-console-0.4.2-36.amzn2.0.2.i686
rubygem-json-1.7.7-36.amzn2.0.2.i686
rubygem-psych-2.0.0-36.amzn2.0.2.i686
ruby-tcltk-2.0.0.648-36.amzn2.0.2.i686
ruby-debuginfo-2.0.0.648-36.amzn2.0.2.i686
noarch:
rubygems-2.0.14.1-36.amzn2.0.2.noarch
rubygems-devel-2.0.14.1-36.amzn2.0.2.noarch
rubygem-rake-0.9.6-36.amzn2.0.2.noarch
ruby-irb-2.0.0.648-36.amzn2.0.2.noarch
rubygem-rdoc-4.0.0-36.amzn2.0.2.noarch
ruby-doc-2.0.0.648-36.amzn2.0.2.noarch
rubygem-minitest-4.3.2-36.amzn2.0.2.noarch
src:
ruby-2.0.0.648-36.amzn2.0.2.src
x86_64:
ruby-2.0.0.648-36.amzn2.0.2.x86_64
ruby-devel-2.0.0.648-36.amzn2.0.2.x86_64
ruby-libs-2.0.0.648-36.amzn2.0.2.x86_64
rubygem-bigdecimal-1.2.0-36.amzn2.0.2.x86_64
rubygem-io-console-0.4.2-36.amzn2.0.2.x86_64
rubygem-json-1.7.7-36.amzn2.0.2.x86_64
rubygem-psych-2.0.0-36.amzn2.0.2.x86_64
ruby-tcltk-2.0.0.648-36.amzn2.0.2.x86_64
ruby-debuginfo-2.0.0.648-36.amzn2.0.2.x86_64