medium
4.3
CWE
400 310
Advisory Published
Advisory Published
Updated

CVE-2013-4287

First published: Thu Oct 17 2013(Updated: )

Algorithmic complexity vulnerability in Gem::Version::VERSION_PATTERN in `lib/rubygems/version.rb` in RubyGems before 1.8.23.1, 1.8.24 through 1.8.25, 2.0.x before 2.0.8, and 2.1.x before 2.1.0, 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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
rubygems/rubygems-update>=2.1.0.rc.1<2.1.0
2.1.0
rubygems/rubygems-update>=2.0.0<2.0.8
2.0.8
rubygems/rubygems-update>=1.8.24<1.8.26
1.8.26
rubygems/rubygems-update<1.8.23.1
1.8.23.1
Red Hat Enterprise Linux=6.0
RubyGems Mail Gem<=1.8.23
RubyGems Mail Gem=1.8.0
RubyGems Mail Gem=1.8.1
RubyGems Mail Gem=1.8.2
RubyGems Mail Gem=1.8.3
RubyGems Mail Gem=1.8.4
RubyGems Mail Gem=1.8.5
RubyGems Mail Gem=1.8.6
RubyGems Mail Gem=1.8.7
RubyGems Mail Gem=1.8.8
RubyGems Mail Gem=1.8.9
RubyGems Mail Gem=1.8.10
RubyGems Mail Gem=1.8.11
RubyGems Mail Gem=1.8.12
RubyGems Mail Gem=1.8.13
RubyGems Mail Gem=1.8.14
RubyGems Mail Gem=1.8.15
RubyGems Mail Gem=1.8.16
RubyGems Mail Gem=1.8.17
RubyGems Mail Gem=1.8.18
RubyGems Mail Gem=1.8.19
RubyGems Mail Gem=1.8.20
RubyGems Mail Gem=1.8.21
RubyGems Mail Gem=1.8.22
RubyGems Mail Gem=1.8.24
RubyGems Mail Gem=1.8.25
RubyGems Mail Gem=2.0.0
RubyGems Mail Gem=2.0.1
RubyGems Mail Gem=2.0.2
RubyGems Mail Gem=2.0.3
RubyGems Mail Gem=2.0.4
RubyGems Mail Gem=2.0.5
RubyGems Mail Gem=2.0.6
RubyGems Mail Gem=2.0.7
RubyGems Mail Gem=2.1.0-rc1
RubyGems Mail Gem=2.1.0-rc2
Ruby=1.9
Ruby=1.9.1
Ruby=1.9.2
Ruby=1.9.3
Ruby=1.9.3-p0
Ruby=1.9.3-p125
Ruby=1.9.3-p194
Ruby=1.9.3-p286
Ruby=1.9.3-p383
Ruby=1.9.3-p385
Ruby=1.9.3-p392
Ruby=1.9.3-p426
Ruby=1.9.3-p429
Ruby=2.0
Ruby=2.0.0
Ruby=2.0.0-p0
Ruby=2.0.0-p195
Ruby=2.0.0-p247
Ruby=2.0.0-preview1
Ruby=2.0.0-preview2
Ruby=2.0.0-rc1
Ruby=2.0.0-rc2

Remedy

http://blog.rubygems.org/2013/09/09/CVE-2013-4287.html

Remedy

http://www.openwall.com/lists/oss-security/2013/09/10/1

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2013-4287?

    CVE-2013-4287 is considered to have a medium severity as it allows remote attackers to cause a denial of service.

  • How do I fix CVE-2013-4287?

    To fix CVE-2013-4287, update RubyGems to versions 1.8.26, 1.8.23.1, 2.0.8, or 2.1.0.

  • Which versions of RubyGems are affected by CVE-2013-4287?

    Versions of RubyGems prior to 1.8.23.1, 1.8.24 through 1.8.25, 2.0.x before 2.0.8, and 2.1.x before 2.1.0 are affected.

  • What type of vulnerability is CVE-2013-4287?

    CVE-2013-4287 is an algorithmic complexity vulnerability affecting the version handling in RubyGems.

  • Are Ruby versions also affected by CVE-2013-4287?

    Yes, Ruby versions from 1.9.0 through 2.0.0p247 can be affected when using vulnerable RubyGems.

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