medium
5
CWE
399
Advisory Published
Updated

CVE-2008-3443

First published: Thu Aug 14 2008(Updated: )

The regular expression engine (regex.c) in Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 allows remote attackers to cause a denial of service (infinite loop and crash) via multiple long requests to a Ruby socket, related to memory allocation failure, and as demonstrated against Webrick.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Ruby=1.8.3-preview1
Ruby=1.8.2-preview4
Ruby=1.8.4-preview2
Ruby=1.8.1--9
Ruby=1.8.7-preview3
Ruby=1.8.7-p17
Ruby=1.9.0
Ruby=1.8.2-preview3
Ruby=1.8.6-p110
Ruby=1.8.6-p230
Ruby=1.8.5-p2
Ruby=1.9.0-r18423
Ruby=1.8.5-p114
Ruby=1.8.5-preview5
Ruby=1.8.5-p12
Ruby=1.8.5-preview1
Ruby=1.8.5-p52
Ruby=1.8.7-p71
Ruby=1.8.4-preview1
Ruby=1.8.7-p22
Ruby=1.8.4
Ruby=1.8.6-p286
Ruby=1.8.3
Ruby=1.8.3-preview2
Ruby=1.8.5
Ruby=1.8.5-p231
Ruby=1.8.2
Ruby=1.8.4-preview3
Ruby=1.8.7-preview2
Ruby=1.8.1
Ruby=1.8.2-preview2
Ruby=1.8.6-p36
Ruby=1.8.3-preview3
Ruby=1.8.6-preview1
Ruby=1.8.6-p114
Ruby=1.8.5-preview4
Ruby=1.8.5-preview2
Ruby=1.8.6-preview3
Ruby=1.8.0
Ruby=1.8.5-p11
Ruby=1.8.7
Ruby=1.8.6-p111
Ruby=1.6.8
Ruby=1.8.6-preview2
Ruby=1.8.5-p35
Ruby=1.8.5-p113
Ruby=1.8.5-p115
Ruby=1.8.7-preview1
Ruby=1.8.6
Ruby=1.8.7-preview4
Ruby=1.8.5-preview3

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2008-3443?

    The severity of CVE-2008-3443 is considered to be high due to its potential to cause denial of service through an infinite loop and crash.

  • How do I fix CVE-2008-3443?

    To fix CVE-2008-3443, you should upgrade your Ruby version to at least 1.8.7-p72 or later, or 1.9.0 and later.

  • Which versions of Ruby are affected by CVE-2008-3443?

    CVE-2008-3443 affects Ruby versions 1.8.5 and earlier, all versions of 1.8.6, 1.8.7 up to 1.8.7-p71, and 1.9 up to r18423.

  • What kind of attacks can exploit CVE-2008-3443?

    CVE-2008-3443 can be exploited by remote attackers who send multiple long requests to a Ruby socket, leading to a denial of service.

  • Is CVE-2008-3443 a critical vulnerability?

    Yes, CVE-2008-3443 is considered critical as it allows remote attackers to crash the application by causing an infinite loop.

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