ALSA-2021:4198

    Dashboard / Vulnerabilities / ALSA-2021:4198

    ALSA-2021:4198

    Published: 9 Nov 2021Last Modified: 4 Feb 2026

    Summary: Moderate: edk2 security, bug fix, and enhancement update

    Details: EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. The following packages have been upgraded to a later upstream version: edk2 (20210527gite1999b264f1f). (BZ#1846481, BZ#1938238) Security Fix(es): * openssl: integer overflow in CipherUpdate (CVE-2021-23840) * openssl: NULL pointer dereference in X509_issuer_and_serial_hash() (CVE-2021-23841) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

    References: https://vulners.com/cve/CVE-2021-23840, https://vulners.com/cve/CVE-2021-23841

    Affected packages

    Package

    Name: edk2-ovmf

    Purl: pkg:rpm/almalinux/edk2-ovmf

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -20210527gite1999b264f1f-3.el8

    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
    ALSA-2021:4198 | CVE-DB