CentOS Linux: CVE-2023-1255: Moderate: openssl security and bug fix update (CESA-2023:3722)

CentOS Linux: CVE-2023-1255: Moderate: openssl security and bug fix update (CESA-2023:3722)

Severity

7

CVSS

(AV:N/AC:M/Au:N/C:N/I:N/A:C)

Published

04/20/2023

Created

06/23/2023

Added

06/22/2023

Modified

01/28/2025

Description

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.

Solution(s)

• centos-upgrade-openssl
• centos-upgrade-openssl-debuginfo
• centos-upgrade-openssl-debugsource
• centos-upgrade-openssl-devel
• centos-upgrade-openssl-libs
• centos-upgrade-openssl-libs-debuginfo
• centos-upgrade-openssl-perl

References

• CVE-2023-1255