Issue summary: The AES-XTS cipher decryption implementation for 64 bit ARM platform contains a bug that could cause it to read past the input buffer, leading to a crash. Impact summary: 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 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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: openssl

Published: 2023-04-20T16:14:54.707Z

Updated: 2024-08-02T05:40:59.617Z

Reserved: 2023-03-07T14:56:07.099Z

Link: CVE-2023-1255

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-04-20T17:15:06.883

Modified: 2023-09-08T17:15:15.800

Link: CVE-2023-1255

cve-icon Redhat

Severity : Low

Publid Date: 2023-04-20T00:00:00Z

Links: CVE-2023-1255 - Bugzilla