UBUNTU-CVE-2021-40391

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    UBUNTU-CVE-2021-40391

    Published: 19 Nov 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-40391
    Aliases:
    USN-6209-1

    Summary:

    Details: An out-of-bounds write vulnerability exists in the drill format T-code tool number functionality of Gerbv 2.7.0, dev (commit b5f1eacd), and the forked version of Gerbv (commit 71493260). A specially-crafted drill file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

    References: https://ubuntu.com/security/CVE-2021-40391, https://talosintelligence.com/vulnerability_reports/TALOS-2021-1402, https://github.com/gerbv/gerbv/commit/9f83950b772b37b49ee188300e444546e6aab17e, https://github.com/gerbv/gerbv/issues/30, https://ubuntu.com/security/notices/USN-6209-1, https://www.cve.org/CVERecord?id=CVE-2021-40391

    Affected packages

    Package

    Name: gerbv

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.6.0-1ubuntu0.14.04.1~esm1

    Affected versions

    2.6.0-1

    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
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