CVE-2016-3191

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    CVE-2016-3191

    Published: 17 Mar 2016Last Modified: 8 Jul 2026

    Summary:

    Details: The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c in PCRE2 before 10.22 mishandles patterns containing an (*ACCEPT) substring in conjunction with nested parentheses, which allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, aka ZDI-CAN-3542.

    References: http://vcs.pcre.org/pcre2?view=revision&revision=489, http://vcs.pcre.org/pcre?view=revision&revision=1631, http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886, http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html, http://www.securityfocus.com/bid/84810, https://bugs.debian.org/815920, https://bugs.debian.org/815921, https://www.tenable.com/security/tns-2016-18, http://rhn.redhat.com/errata/RHSA-2016-1025.html, https://access.redhat.com/errata/RHSA-2016:1132, https://bto.bluecoat.com/security-advisory/sa128, https://bugzilla.redhat.com/show_bug.cgi?id=1311503, https://bugs.exim.org/show_bug.cgi?id=1791

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    pcre2-10.21

    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