MGASA-2021-0109

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    MGASA-2021-0109

    Published: 4 Mar 2021Last Modified: 16 Apr 2026
    Upstream:
    CVE-2021-26937

    Summary: Updated screen packages fix security vulnerability

    Details: Felix Weinmann reported a flaw in the handling of combining characters in screen, which can result in denial of service, or potentially the execution of arbitrary code via a specially crafted UTF-8 character sequence (CVE-2021-26937).

    References: https://advisories.mageia.org/MGASA-2021-0109.html, https://bugs.mageia.org/show_bug.cgi?id=28390, https://www.debian.org/security/2021/dsa-4861

    Affected packages

    Package

    Name: screen

    Purl: pkg:rpm/mageia/screen?arch=source&distro=mageia-7

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.6.2-2.2.mga7

    Affected versions

    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
    MGASA-2021-0109 | CVE-DB