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    CVE-2008-3443

    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.

    Published:Aug 14, 2008
    Last Modified:Apr 23, 2026
    EPS:Aug 14, 2008
    EPSS Score:0.29255
    CVSS Score:5

    Affected Products

    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Ruby-lang
    Product
    Ruby

    Exploits

    https://www.exploit-db.com/exploits/6239

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
    http://secunia.com/advisories/31430
    http://secunia.com/advisories/32165
    http://secunia.com/advisories/32219
    http://secunia.com/advisories/32371
    http://secunia.com/advisories/32372
    http://secunia.com/advisories/33185
    http://secunia.com/advisories/33398
    http://secunia.com/advisories/35074
    http://securityreason.com/securityalert/4158
    http://support.apple.com/kb/HT3549
    http://support.avaya.com/elmodocs2/security/ASA-2008-424.htm
    http://www.debian.org/security/2009/dsa-1695
    http://www.redhat.com/support/errata/RHSA-2008-0895.html
    http://www.redhat.com/support/errata/RHSA-2008-0897.html
    http://www.securityfocus.com/bid/30682
    http://www.securitytracker.com/id?1021075
    http://www.us-cert.gov/cas/techalerts/TA09-133A.html
    http://www.vupen.com/english/advisories/2009/1297
    https://exchange.xforce.ibmcloud.com/vulnerabilities/44688
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9570
    https://usn.ubuntu.com/651-1/
    https://usn.ubuntu.com/691-1/
    https://www.exploit-db.com/exploits/6239
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00259.html
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00299.html
    http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
    http://secunia.com/advisories/31430
    http://secunia.com/advisories/32165
    http://secunia.com/advisories/32219
    http://secunia.com/advisories/32371
    http://secunia.com/advisories/32372
    http://secunia.com/advisories/33185
    http://secunia.com/advisories/33398
    http://secunia.com/advisories/35074
    http://securityreason.com/securityalert/4158
    http://support.apple.com/kb/HT3549
    http://support.avaya.com/elmodocs2/security/ASA-2008-424.htm
    http://www.debian.org/security/2009/dsa-1695
    http://www.redhat.com/support/errata/RHSA-2008-0895.html
    http://www.redhat.com/support/errata/RHSA-2008-0897.html
    http://www.securityfocus.com/bid/30682
    http://www.securitytracker.com/id?1021075
    http://www.us-cert.gov/cas/techalerts/TA09-133A.html
    http://www.vupen.com/english/advisories/2009/1297
    https://exchange.xforce.ibmcloud.com/vulnerabilities/44688
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9570
    https://usn.ubuntu.com/651-1/
    https://usn.ubuntu.com/691-1/
    https://www.exploit-db.com/exploits/6239
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00259.html
    https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00299.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High