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SUSE-SU-2023:3030-1

Опубликовано: 31 июл. 2023
Источник: suse-cvrf

Описание

Security update for cjose

This update for cjose fixes the following issues:

  • CVE-2023-37464: Fixed AES GCM decryption uses the Tag length from the actual Authentication Tag (bsc#1213385).

Список пакетов

SUSE Linux Enterprise Server 12 SP4-ESPOS
libcjose0-0.6.1-7.5.1
SUSE Linux Enterprise Server 12 SP4-LTSS
libcjose0-0.6.1-7.5.1
SUSE Linux Enterprise Server 12 SP5
libcjose0-0.6.1-7.5.1
SUSE Linux Enterprise Server for SAP Applications 12 SP4
libcjose0-0.6.1-7.5.1
SUSE Linux Enterprise Server for SAP Applications 12 SP5
libcjose0-0.6.1-7.5.1
SUSE OpenStack Cloud 9
libcjose0-0.6.1-7.5.1
SUSE OpenStack Cloud Crowbar 9
libcjose0-0.6.1-7.5.1

Описание

OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorrectly uses the Tag length from the actual Authentication Tag provided in the JWE. The spec says that a fixed length of 16 octets must be applied. Therefore this bug allows an attacker to provide a truncated Authentication Tag and to modify the JWE accordingly. Users should upgrade to a version >= 0.6.2.2. Users unable to upgrade should avoid using AES GCM encryption and replace it with another encryption algorithm (e.g. AES CBC).


Затронутые продукты
SUSE Linux Enterprise Server 12 SP4-ESPOS:libcjose0-0.6.1-7.5.1
SUSE Linux Enterprise Server 12 SP4-LTSS:libcjose0-0.6.1-7.5.1
SUSE Linux Enterprise Server 12 SP5:libcjose0-0.6.1-7.5.1
SUSE Linux Enterprise Server for SAP Applications 12 SP4:libcjose0-0.6.1-7.5.1

Ссылки