UBUNTU-CVE-2017-18258

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    UBUNTU-CVE-2017-18258

    Published: 8 Apr 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-18258
    Aliases:
    USN-3739-1

    Summary:

    Details: The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.

    References: https://ubuntu.com/security/CVE-2017-18258, https://ubuntu.com/security/notices/USN-3739-1, https://www.cve.org/CVERecord?id=CVE-2017-18258

    Affected packages

    Package

    Name: libxml2

    Purl: pkg:deb/ubuntu/[email protected]+dfsg1-3ubuntu4.13?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.9.1+dfsg1-3ubuntu4.13

    Affected versions

    2.9.1+dfsg1-3ubuntu2
    2.9.1+dfsg1-3ubuntu3
    2.9.1+dfsg1-3ubuntu4
    2.9.1+dfsg1-3ubuntu4.1
    2.9.1+dfsg1-3ubuntu4.2
    2.9.1+dfsg1-3ubuntu4.3
    2.9.1+dfsg1-3ubuntu4.4
    2.9.1+dfsg1-3ubuntu4.5
    2.9.1+dfsg1-3ubuntu4.6
    2.9.1+dfsg1-3ubuntu4.7
    2.9.1+dfsg1-3ubuntu4.8
    2.9.1+dfsg1-3ubuntu4.9
    2.9.1+dfsg1-3ubuntu4.10
    2.9.1+dfsg1-3ubuntu4.11
    2.9.1+dfsg1-3ubuntu4.12

    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