Skip to main content

Out-of-bounds Read

CVE-2023-1255

Medium
5.9/10

Summary

The AES-XTS cipher decryption implementation for the 64-bit ARM platform contains a bug that could cause it to read past the input buffer, leading to a crash. Applications that use the AES-XTS algorithm on the 64-bit ARM platform can crash in rare circumstances. The AES-XTS algorithm is usually used for disk encryption. The AES-XTS cipher decryption implementation for the 64-bit ARM platform will read past the end of the ciphertext buffer if the ciphertext size is 4 mod 5 in 16-byte blocks, e.g. 144 bytes or 1024 bytes. If the memory after the ciphertext buffer is unmapped, this will trigger a crash which results in a Denial of Service. If an attacker can control the size and location of the ciphertext buffer being decrypted by an application using AES-XTS on 64-bit ARM, the application is affected. This is fairly unlikely making this issue a Low severity one. This issue affects openssl versions 3.0.x prior to 3.0.9 and 3.1.x prior to 3.1.1.

  • HIGH
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-125 - Out-of-Bounds Read

Out-of-bounds read is a vulnerability that allows access to memory beyond the authorized accessible location. Such a vulnerability compromises the confidentiality of the trusted environment in the application and enables an attacker to launch further attacks by leveraging the exposed information.

References

Advisory Timeline

  • Published