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OpenAdvisories
High ALSA-2023:2932 4 CVEs

Important: edk2 security update

Published May 16, 2023 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

Summary

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.

Security Fix(es):

* openssl: X.400 address type confusion in X.509 GeneralName (CVE-2023-0286)
* openssl: timing attack in RSA Decryption implementation (CVE-2022-4304)
* openssl: double free after calling PEM_read_bio_ex (CVE-2022-4450)
* openssl: use-after-free following BIO_new_NDEF (CVE-2023-0215)

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.

Fixed packages 2

ReleasePackageFixed in
AlmaLinux · 8 edk2-aarch64 20220126gitbb1bba3d77-4.el8
AlmaLinux · 8 edk2-ovmf 20220126gitbb1bba3d77-4.el8

Vulnerabilities 4

  • High 7.5
    CVE-2022-4450 EPSS 29%

    Double free after calling PEM_read_bio_ex

    The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload data. If the function succeeds then the "name_out", "header" and "data" arguments are populated with pointers to…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi crates.io
  • High 7.5
    CVE-2023-0215

    Use-after-free following BIO_new_NDEF

    The public API function BIO_new_NDEF is a helper function used for streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL to support the SMIME, CMS and PKCS7 streaming capabilities, but may also be called directly by end user applications.…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi crates.io
  • High 7.4
    CVE-2023-0286 Public exploit EPSS 68%

    X.400 address type confusion in X.509 GeneralName

    There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address fiel…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi PyPI crates.io
  • Medium 5.9
    CVE-2022-4304 Public exploit EPSS 24%

    Timing Oracle in RSA Decryption

    A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a …

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi crates.io

References

  • report
    https://access.redhat.com/security/cve/CVE-2022-4304
  • report
    https://access.redhat.com/security/cve/CVE-2022-4450
  • report
    https://access.redhat.com/security/cve/CVE-2023-0215
  • report
    https://access.redhat.com/security/cve/CVE-2023-0286
  • report
    https://bugzilla.redhat.com/2164440
  • report
    https://bugzilla.redhat.com/2164487
  • report
    https://bugzilla.redhat.com/2164492
  • report
    https://bugzilla.redhat.com/2164494
  • advisory
    https://errata.almalinux.org/8/ALSA-2023-2932.html