USN-5102-2

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    USN-5102-2

    Published: 16 Mar 2021Last Modified: 29 Jun 2026

    Summary: mercurial vulnerabilities

    Details: USN-5102-1 fixed vulnerabilities in Mercurial. This update provides the corresponding updates for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: It was discovered that Mercurial mishandled symlinks in subrepositories. An attacker could use this issue to write arbitrary files to the target’s filesystem. (CVE-2019-3902) It was discovered that Mercurial incorrectly handled certain manifest files. An attacker could use this issue to cause a denial of service and possibly execute arbitrary code. This issue only affected Ubuntu 16.04 ESM. (CVE-2018-17983)

    References: https://ubuntu.com/security/notices/USN-5102-2, https://ubuntu.com/security/CVE-2018-17983, https://ubuntu.com/security/CVE-2019-3902

    Affected packages

    Package

    Name: mercurial

    Purl: pkg:deb/ubuntu/mercurial?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.8.2-1ubuntu1.4+esm1

    Affected versions

    2.6.3-1

    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