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CVE-2013-4287

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Date: October 17, 2013

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.

Language: Ruby

Severity Score

Related Resources (19)

https://nvd.nist.gov/vuln/detail/CVE-2013-4287
https://github.com/rubygems/rubygems/commit/b697536f2455e8c8853cf5cf8a1017a36031ed67
http://secunia.com/advisories/55381
http://rhn.redhat.com/errata/RHSA-2013-1427.html
https://github.com/rubygems/rubygems/blob/03a074e8838683f45611b119fd8f363aa44fe2fd/CHANGELOG.md
https://github.com/rubygems/rubygems/commit/b9baec03145aed684d1cd3c87dcac3cc06becd9b
https://web.archive.org/web/20160806152839/https://puppet.com/security/cve/cve-2013-4287
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rubygems-update/CVE-2013-4287.yml
https://access.redhat.com/security/cve/CVE-2013-4287
https://github.com/rubygems/rubygems/commit/ed733bc379d75620f5be4213f89d1d7b38be3191
http://rhn.redhat.com/errata/RHSA-2013-1523.html
http://rhn.redhat.com/errata/RHSA-2013-1852.html
http://rhn.redhat.com/errata/RHSA-2014-0207.html
https://github.com/rubygems/rubygems/commit/938a7e31ac73655845ab9045629ff3f580a125da
http://blog.rubygems.org/2013/09/09/CVE-2013-4287.html
https://puppet.com/security/cve/cve-2013-4287
http://www.openwall.com/lists/oss-security/2013/09/10/1
http://rhn.redhat.com/errata/RHSA-2013-1441.html
https://www.mend.io/vulnerability-database/CVE-2013-4287

Severity Score

Weakness Type (CWE)

Cryptographic Issues

CWE-310

Uncontrolled Resource Consumption

CWE-400

Top Fix

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Upgrade Version

Upgrade to version rubygems-update - 1.8.26;rubygems-update - 2.0.8;rubygems-update - 2.1.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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