# CVE-2021-23841: edk2-aarch64: EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines CVE-2021-23841 is fixed in 12 products on 1 platform, first by libssl1.0.0 1.0.2n-1ubuntu5.6, released February 16, 2021. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2021-23841 - Priority: High - CVSS: 7.5 (Moderate) - EPSS: 0.0741 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Feb 16, 2021 ## Description 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 Red Hat Enterprise Linux 8.5 Release Notes linked from the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | edk2 rocky 8 | 0:20210527gite1999b264f1f-3.el8 | [RLSA-2021:4198](https://patchblox.com/security/data/fix/linux/rlsa-2021-4198.md) | Nov 9, 2021 | | Linux | edk2-aarch64 RHEL 8 | 0:20210527gite1999b264f1f-3.el8 | [RHSA-2021:4198](https://patchblox.com/security/data/fix/linux/rhsa-2021-4198.md) | Nov 9, 2021 | | Linux | edk2-ovmf RHEL 8 | 0:20210527gite1999b264f1f-3.el8 | [RHSA-2021:4198](https://patchblox.com/security/data/fix/linux/rhsa-2021-4198.md) | Nov 9, 2021 | | Linux | edk2-ovmf almalinux 8 | 20210527gite1999b264f1f-3.el8 | [ALSA-2021:4198](https://patchblox.com/security/data/fix/linux/alsa-2021-4198.md) | Nov 9, 2021 | | Linux | libssl1.0.0 Ubuntu 18.04.6 LTS (bionic) | 1.0.2n-1ubuntu5.6 | [libssl1.0.0 1.0.2n-1ubuntu5.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.0.0-1.0.2n-1ubuntu5.6.md) | Feb 16, 2021 | | Linux | libssl1.1 Ubuntu 18.04.6 LTS (bionic) | 1.1.1-1ubuntu2.1~18.04.8 | [libssl1.1 1.1.1-1ubuntu2.1~18.04.8](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libssl1.1-1.1.1-1ubuntu2.1-18.04.8.md) | Feb 16, 2021 | | Linux | libssl1.1 Ubuntu 20.04 LTS (focal) | 1.1.1f-1ubuntu2.2 | [libssl1.1 1.1.1f-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libssl1.1-1.1.1f-1ubuntu2.2.md) | Feb 16, 2021 | | Linux | openssl RHEL 8 | 1:1.1.1k-4.el8 | [RHSA-2021:4424](https://patchblox.com/security/data/fix/linux/rhsa-2021-4424.md) | Nov 9, 2021 | | Linux | openssl Ubuntu 18.04.6 LTS (bionic) | 1.1.1-1ubuntu2.1~18.04.8 | [openssl 1.1.1-1ubuntu2.1~18.04.8](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openssl-1.1.1-1ubuntu2.1-18.04.8.md) | Feb 16, 2021 | | Linux | openssl Ubuntu 20.04 LTS (focal) | 1.1.1f-1ubuntu2.2 | [openssl 1.1.1f-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-openssl-1.1.1f-1ubuntu2.2.md) | Feb 16, 2021 | | Linux | openssl ol 8 | 2:1.1.1k-4.ksplice1.el8 | [ELSA-2021-9561](https://patchblox.com/security/data/fix/linux/elsa-2021-9561.md) | Nov 23, 2021 | | Linux | openssl rocky 8 | 1:1.1.1k-4.el8 | [RLSA-2021:4424](https://patchblox.com/security/data/fix/linux/rlsa-2021-4424.md) | Nov 9, 2021 | | Linux | openssl-debugsource ol 8 | 2:1.1.1k-4.ksplice1.el8 | [ELSA-2021-9561](https://patchblox.com/security/data/fix/linux/elsa-2021-9561.md) | Nov 23, 2021 | | Linux | openssl-devel RHEL 8 | 1:1.1.1k-4.el8 | [RHSA-2021:4424](https://patchblox.com/security/data/fix/linux/rhsa-2021-4424.md) | Nov 9, 2021 | | Linux | openssl-devel ol 8 | 2:1.1.1k-4.ksplice1.el8 | [ELSA-2021-9561](https://patchblox.com/security/data/fix/linux/elsa-2021-9561.md) | Nov 23, 2021 | | Linux | openssl-libs RHEL 8 | 1:1.1.1k-4.el8 | [RHSA-2021:4424](https://patchblox.com/security/data/fix/linux/rhsa-2021-4424.md) | Nov 9, 2021 | | Linux | openssl-libs ol 8 | 2:1.1.1k-4.ksplice1.el8 | [ELSA-2021-9561](https://patchblox.com/security/data/fix/linux/elsa-2021-9561.md) | Nov 23, 2021 | | Linux | openssl-perl RHEL 8 | 1:1.1.1k-4.el8 | [RHSA-2021:4424](https://patchblox.com/security/data/fix/linux/rhsa-2021-4424.md) | Nov 9, 2021 | | Linux | openssl-perl ol 8 | 2:1.1.1k-4.ksplice1.el8 | [ELSA-2021-9561](https://patchblox.com/security/data/fix/linux/elsa-2021-9561.md) | Nov 23, 2021 | | Linux | openssl-static ol 8 | 2:1.1.1k-4.ksplice1.el8 | [ELSA-2021-9561](https://patchblox.com/security/data/fix/linux/elsa-2021-9561.md) | Nov 23, 2021 | | Linux | openssl1.0 Ubuntu 18.04.6 LTS (bionic) | 1.0.2n-1ubuntu5.6 | [openssl1.0 1.0.2n-1ubuntu5.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-openssl1.0-1.0.2n-1ubuntu5.6.md) | Feb 16, 2021 | --- Data as of 2026-11-08T19:12:23Z UTC. 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