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    CVE-2006-7230

    Perl-Compatible Regular Expression (PCRE) library before 7.0 does not properly calculate the amount of memory needed for a compiled regular expression pattern when the (1) -x or (2) -i UTF-8 options change within the pattern, which allows context-dependent attackers to cause a denial of service (PCRE or glibc crash) via crafted regular expressions.

    Published:Nov 15, 2007
    Last Modified:Apr 23, 2026
    EPS:Nov 15, 2007
    EPSS Score:0.02783
    CVSS Score:4.3

    Affected Products

    Vendor
    Pcre
    Product
    Pcre
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2020-14155 (CVSS 5.3) — libpcre in PCRE before 8.44 allows an integer overflow via a large number after a (?C substring.…
    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://bugs.gentoo.org/show_bug.cgi?id=198976
    http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
    http://secunia.com/advisories/27741
    http://secunia.com/advisories/27773
    http://secunia.com/advisories/28041
    http://secunia.com/advisories/28406
    http://secunia.com/advisories/28414
    http://secunia.com/advisories/28658
    http://secunia.com/advisories/28714
    http://secunia.com/advisories/28720
    http://secunia.com/advisories/30106
    http://secunia.com/advisories/30155
    http://secunia.com/advisories/30219
    http://security.gentoo.org/glsa/glsa-200711-30.xml
    http://security.gentoo.org/glsa/glsa-200801-02.xml
    http://security.gentoo.org/glsa/glsa-200801-18.xml
    http://security.gentoo.org/glsa/glsa-200801-19.xml
    http://security.gentoo.org/glsa/glsa-200805-11.xml
    http://support.avaya.com/elmodocs2/security/ASA-2007-505.htm
    http://www.debian.org/security/2008/dsa-1570
    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-2007-1059.html
    http://www.redhat.com/support/errata/RHSA-2007-1068.html
    http://www.securityfocus.com/bid/26550
    https://bugzilla.redhat.com/show_bug.cgi?id=384801
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10911
    http://bugs.gentoo.org/show_bug.cgi?id=198976
    http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.html
    http://secunia.com/advisories/27741
    http://secunia.com/advisories/27773
    http://secunia.com/advisories/28041
    http://secunia.com/advisories/28406
    http://secunia.com/advisories/28414
    http://secunia.com/advisories/28658
    http://secunia.com/advisories/28714
    http://secunia.com/advisories/28720
    http://secunia.com/advisories/30106
    http://secunia.com/advisories/30155
    http://secunia.com/advisories/30219
    http://security.gentoo.org/glsa/glsa-200711-30.xml
    http://security.gentoo.org/glsa/glsa-200801-02.xml
    http://security.gentoo.org/glsa/glsa-200801-18.xml
    http://security.gentoo.org/glsa/glsa-200801-19.xml
    http://security.gentoo.org/glsa/glsa-200805-11.xml
    http://support.avaya.com/elmodocs2/security/ASA-2007-505.htm
    http://www.debian.org/security/2008/dsa-1570
    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-2007-1059.html
    http://www.redhat.com/support/errata/RHSA-2007-1068.html
    http://www.securityfocus.com/bid/26550
    https://bugzilla.redhat.com/show_bug.cgi?id=384801
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10911

    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