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    CVE-2005-4872

    Perl-Compatible Regular Expression (PCRE) library before 6.2 does not properly count the number of named capturing subpatterns, which allows context-dependent attackers to cause a denial of service (crash) via a regular expression with a large number of named subpatterns, which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.

    Published:Dec 31, 2005
    Last Modified:Apr 16, 2026
    EPS:Nov 14, 2007
    EPSS Score:0.01485
    CVSS Score:4.3

    Affected Products

    Vendor
    Pcre
    Product
    Pcre
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2019-20838 (CVSS 7.5) — libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has mo…
    CVE-2017-16231 (CVSS 5.5) — In PCRE 8.41, after compiling, a pcretest load test PoC produces a crash overflow in the function match() in p…
    CVE-2017-11164 (CVSS 7.5) — In PCRE 8.41, the OP_KETRMAX feature in the match function in pcre_exec.c allows stack exhaustion (uncontrolle…
    CVE-2017-7246 (CVSS 7.8) — Stack-based buffer overflow in the pcre32_copy_substring function in pcre_get.c in libpcre1 in PCRE 8.40 allow…
    CVE-2017-7245 (CVSS 7.8) — Stack-based buffer overflow in the pcre32_copy_substring function in pcre_get.c in libpcre1 in PCRE 8.40 allow…
    CVE-2017-7244 (CVSS 5.5) — The _pcre32_xclass function in pcre_xclass.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denia…
    CVE-2017-7186 (CVSS 7.5) — libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segment…
    CVE-2017-6004 (CVSS 7.5) — The compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE through 8.x before revision 1680 (e.g.…
    CVE-2014-9769 (CVSS 7.3) — pcre_jit_compile.c in PCRE 8.35 does not properly use table jumps to optimize nested alternatives, which allow…

    References

    http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
    http://scary.beasts.org/security/CESA-2007-006.html
    http://secunia.com/advisories/27582
    http://secunia.com/advisories/27773
    http://secunia.com/advisories/27869
    http://secunia.com/advisories/28658
    http://support.avaya.com/elmodocs2/security/ASA-2007-493.htm
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:030
    http://www.novell.com/linux/security/advisories/2007_62_pcre.html
    http://www.pcre.org/changelog.txt
    http://www.redhat.com/support/errata/RHSA-2007-1052.html
    http://www.securityfocus.com/bid/26462
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11615
    http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
    http://scary.beasts.org/security/CESA-2007-006.html
    http://secunia.com/advisories/27582
    http://secunia.com/advisories/27773
    http://secunia.com/advisories/27869
    http://secunia.com/advisories/28658
    http://support.avaya.com/elmodocs2/security/ASA-2007-493.htm
    http://www.mandriva.com/security/advisories?name=MDVSA-2008:030
    http://www.novell.com/linux/security/advisories/2007_62_pcre.html
    http://www.pcre.org/changelog.txt
    http://www.redhat.com/support/errata/RHSA-2007-1052.html
    http://www.securityfocus.com/bid/26462
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11615

    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