CVE-2013-4363
RubyGems Regular Expression Denial of Service
EPSS 1.7%
描述
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.
如何修補 CVE-2013-4363
要修補 CVE-2013-4363,請將受影響套件升級到下列已修補版本。
- Debian/rubygems—升級至 3.2.0~rc.1-1 或更新版本
- —升級至 1.8.23.2 或更新版本
CVE-2013-4363 正在被利用嗎?
低 — EPSS 為 1.7%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 3.2.0~rc.1-1
- from 0, < 1.8.23.2