Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | rubygems | 3.2.0~rc.1-1 | — |
| Debian 13 | rubygems | 3.2.0~rc.1-1 | — |
| Debian 12 | rubygems | 3.2.0~rc.1-1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| RubyGems | rubygems-update | < 1.8.23.2 | 1.8.23.2 | GHSA-9qvm-2vhf-q649 |
| RubyGems | rubygems-update | >= 1.8.24, < 1.8.27 | 1.8.27 | GHSA-9qvm-2vhf-q649 |
| RubyGems | rubygems-update | >= 2.0.0, < 2.0.10 | 2.0.10 | GHSA-9qvm-2vhf-q649 |
| RubyGems | rubygems-update | >= 2.1.0, < 2.1.5 | 2.1.5 | GHSA-9qvm-2vhf-q649 |
References
- https://puppet.com/security/cve/cve-2013-4363
- [oss-security] 20130918 Re: CVE-2013-4287 Algorithmic complexity vulnerability in RubyGems 2.0.7 and older mailing-list
- http://blog.rubygems.org/2013/09/24/CVE-2013-4363.html
- [oss-security] 20130915 Re: CVE-2013-4287 Algorithmic complexity vulnerability in RubyGems 2.0.7 and older mailing-list
- [oss-security] 20130920 Re: CVE-2013-4287 Algorithmic complexity vulnerability in RubyGems 2.0.7 and older mailing-list