QID 239221

Date Published: 2021-04-19

QID 239221: Red Hat Update for thunderbird (RHSA-2021:1201)

Mozilla Thunderbird is a standalone mail and newsgroup client.This update upgrades Thunderbird to version 78.9.1.

Security Fix(es): Mozilla: An attacker may use Thunderbird's OpenPGP key refresh mechanism to poison an existing key (CVE-2021-23991) Mozilla: A crafted OpenPGP key with an invalid user ID could be used to confuse the user (CVE-2021-23992) Mozilla: Inability to send encrypted OpenPGP email after importing a crafted OpenPGP key (CVE-2021-23993)

Affected Products:

Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.2 x86_64
Red Hat Enterprise Linux Server - AUS 8.2 x86_64
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.2 ppc64le
Red Hat Enterprise Linux Server - TUS 8.2 x86_64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.2 aarch64
Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 8.2 ppc64le
Red Hat Enterprise Linux Server - Update Services for SAP Solutions 8.2 x86_64

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

On successful exploitation, it could allow an attacker to execute code.

  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Upgrade to the latest packages which contain a patch. Refer to Applying Package Updates to RHEL system for details.

    Refer to Red Hat security advisory RHSA-2021:1201 to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239221

    CVE-2021-23991 | CVE-2021-23992 | CVE-2021-23993 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:1201 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:1201?language=en
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