UBUNTU-CVE-2017-18120

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    UBUNTU-CVE-2017-18120

    Published: 2 Feb 2018Last Modified: 4 Feb 2026
    Upstream:
    CVE-2017-18120
    Aliases:
    USN-4803-1

    Summary:

    Details: A double-free bug in the read_gif function in gifread.c in gifsicle 1.90 allows a remote attacker to cause a denial-of-service attack or unspecified other impact via a maliciously crafted file, because last_name is mishandled, a different vulnerability than CVE-2017-1000421.

    References: https://ubuntu.com/security/CVE-2017-18120, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878739, https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881120, https://github.com/kohler/gifsicle/commit/118a46090c50829dc543179019e6140e1235f909, https://github.com/kohler/gifsicle/commit/263cd4519f45bc6ecde74ee280eb1d68ee2de642, https://github.com/kohler/gifsicle/issues/117, https://www.cve.org/CVERecord?id=CVE-2017-18120, https://ubuntu.com/security/notices/USN-4803-1

    Affected packages

    Package

    Name: gifsicle

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.78-1ubuntu0.1~esm1

    Affected versions

    1.71-1

    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