UBUNTU-CVE-2021-28153

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    UBUNTU-CVE-2021-28153

    Published: 11 Mar 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-28153
    Aliases:
    USN-4764-1

    Summary:

    Details: An issue was discovered in GNOME GLib before 2.66.8. When g_file_replace() is used with G_FILE_CREATE_REPLACE_DESTINATION to replace a path that is a dangling symlink, it incorrectly also creates the target of the symlink as an empty file, which could conceivably have security relevance if the symlink is attacker-controlled. (If the path is a symlink to a file that already exists, then the contents of that file correctly remain unchanged.)

    References: https://ubuntu.com/security/CVE-2021-28153, https://ubuntu.com/security/notices/USN-4764-1, https://www.cve.org/CVERecord?id=CVE-2021-28153

    Affected packages

    Package

    Name: glib2.0

    Purl: pkg:deb/ubuntu/[email protected]+esm7?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.38.0-1ubuntu1
    2.38.1-1

    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
    UBUNTU-CVE-2021-28153 | CVE-DB