UBUNTU-CVE-2021-29950

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    UBUNTU-CVE-2021-29950

    Published: 22 Apr 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-29950
    Aliases:
    USN-4936-1

    Summary:

    Details: Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird < 78.8.1.

    References: https://ubuntu.com/security/CVE-2021-29950, https://www.mozilla.org/en-US/security/advisories/mfsa2021-17/#CVE-2021-29950, https://access.redhat.com/security/cve/CVE-2021-29950, https://ubuntu.com/security/notices/USN-4936-1, https://www.cve.org/CVERecord?id=CVE-2021-29950

    Affected packages

    Package

    Name: thunderbird

    Purl: pkg:deb/ubuntu/thunderbird@1:78.8.1+build1-0ubuntu0.18.04.1?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:78.8.1+build1-0ubuntu0.18.04.1

    Affected versions

    1:52.4.0+build1-0ubuntu2

    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-2021-29950 | CVE-DB