UBUNTU-CVE-2019-1000020

    Dashboard / Vulnerabilities / UBUNTU-CVE-2019-1000020

    UBUNTU-CVE-2019-1000020

    Published: 4 Feb 2019Last Modified: 22 Apr 2026
    Aliases:
    USN-3884-1

    Summary:

    Details: libarchive version commit 5a98dcf8a86364b3c2c469c85b93647dfb139961 onwards (version v2.8.0 onwards) contains a CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in ISO9660 parser, archive_read_support_format_iso9660.c, read_CE()/parse_rockridge() that can result in DoS by infinite loop. This attack appears to be exploitable via the victim opening a specially crafted ISO9660 file.

    References: https://ubuntu.com/security/CVE-2019-1000020, https://github.com/libarchive/libarchive/pull/1120, https://github.com/libarchive/libarchive/pull/1120/commits/8312eaa576014cd9b965012af51bc1f967b12423, https://ubuntu.com/security/notices/USN-3884-1, https://www.cve.org/CVERecord?id=CVE-2019-1000020

    Affected packages

    Package

    Name: libarchive

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.1.2-7ubuntu2.8

    Affected versions

    3.1.2-5ubuntu1
    3.1.2-7ubuntu1
    3.1.2-7ubuntu2
    3.1.2-7ubuntu2.1
    3.1.2-7ubuntu2.2
    3.1.2-7ubuntu2.3
    3.1.2-7ubuntu2.4
    3.1.2-7ubuntu2.6
    3.1.2-7ubuntu2.7

    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