Amazon Linux 1 Security Advisory: ALAS-2013-231
Advisory Release Date: 2013-10-16 20:52 Pacific
Advisory Updated Date: 2014-09-16 21:41 Pacific
Severity:
Medium
Issue Overview:
Algorithmic complexity vulnerability in Gem::Version::ANCHORED_VERSION_PATTERN in lib/rubygems/version.rb in RubyGems before 1.8.23.2, 1.8.24 through 1.8.26, 2.0.x before 2.0.10, and 2.1.x before 2.1.5, as used in Ruby 1.9.0 through 2.0.0p247, allows remote attackers to cause a denial of service (CPU consumption) via a crafted gem version that triggers a large amount of backtracking in a regular expression. NOTE: this issue is due to an incomplete fix for CVE-2013-4287.
Affected Packages:
rubygems
Issue Correction:
Run yum update rubygems to update your system.
New Packages:
noarch:
rubygems-1.8.25-8.12.amzn1.noarch
rubygems-devel-1.8.25-8.12.amzn1.noarch
src:
rubygems-1.8.25-8.12.amzn1.src