Related Vulnerabilities: CVE-2022-2097  

AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimized implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn't written. In the special case of "in place" encryption, sixteen bytes of the plaintext would be revealed.

Description

AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimized implementation will not encrypt the entirety of the data under some circumstances. This could reveal sixteen bytes of data that was preexisting in the memory that wasn't written. In the special case of "in place" encryption, sixteen bytes of the plaintext would be revealed.

Statement

The versions of `shim` as shipped with Red Hat Enterprise Linux 8 and 9 are not affected by this issue as they bundle openssl-1.0.2j.

The versions of shim as shipped with Red Hat Enterprise Linux 8 and 9 are not affected by this issue as they bundle openssl-1.0.2j.

Additional Information

  • Bugzilla 2104905: CVE-2022-2097 openssl: AES OCB fails to encrypt some bytes
  • CWE-325: Missing Cryptographic Step
  • FAQ: Frequently asked questions about CVE-2022-2097