CVE-2015-8381

    Dashboard / Vulnerabilities / CVE-2015-8381

    CVE-2015-8381

    Published: 2 Dec 2015Last Modified: 10 Apr 2026

    Summary:

    Details: The compile_regex function in pcre_compile.c in PCRE before 8.38 and pcre2_compile.c in PCRE2 before 10.2x mishandles the /(?J:(?|(:(?|(?'R')(\k'R')|((?'R')))H'Rk'Rf)|s(?'R'))))/ and /(?J:(?|(:(?|(?'R')(\z(?|(?'R')(\k'R')|((?'R')))k'R')|((?'R')))H'Ak'Rf)|s(?'R')))/ patterns, and related patterns with certain group references, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

    References: http://rhn.redhat.com/errata/RHSA-2016-2750.html, http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup, http://www.openwall.com/lists/oss-security/2015/11/29/1, http://www.securityfocus.com/bid/76187, https://access.redhat.com/errata/RHSA-2016:1132, https://bto.bluecoat.com/security-advisory/sa128, https://security.gentoo.org/glsa/201607-02, http://www.openwall.com/lists/oss-security/2015/11/29/1, http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup, https://bugs.exim.org/show_bug.cgi?id=1667, https://bugs.exim.org/show_bug.cgi?id=1672

    Affected packages

    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