UBUNTU-CVE-2016-9954

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    UBUNTU-CVE-2016-9954

    Published: 21 Apr 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2016-9954

    Summary:

    Details: The backtrack compilation code in the Irregex package (aka IrRegular Expressions) before 0.9.6 for Scheme allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression with a repeating pattern.

    References: https://ubuntu.com/security/CVE-2016-9954, https://www.openwall.com/lists/oss-security/2016/12/14/18, https://github.com/ashinn/irregex/commit/a16ffc86eca15fca9e40607d41de3cea9cf868f1, https://www.cve.org/CVERecord?id=CVE-2016-9954

    Affected packages

    Package

    Name: chicken

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.9.0.1-1

    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