UBUNTU-CVE-2018-7186

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    UBUNTU-CVE-2018-7186

    Published: 16 Feb 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-7186
    Aliases:
    USN-4819-1

    Summary:

    Details: Leptonica before 1.75.3 does not limit the number of characters in a %s format argument to fscanf or sscanf, which allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a long string, as demonstrated by the gplotRead and ptaReadStream functions.

    References: https://ubuntu.com/security/CVE-2018-7186, https://github.com/DanBloomberg/leptonica/commit/ee301cb2029db8a6289c5295daa42bba7715e99a, https://bugs.debian.org/890548, https://lists.debian.org/debian-lts/2018/02/msg00054.html, https://www.cve.org/CVERecord?id=CVE-2018-7186, https://ubuntu.com/security/notices/USN-4819-1

    Affected packages

    Package

    Name: leptonlib

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.70.1-1ubuntu0.1~esm1

    Affected versions

    1.69-4ubuntu1

    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
    UBUNTU-CVE-2018-7186 | CVE-DB