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SUSE-SU-2023:0482-1

Опубликовано: 23 фев. 2023
Источник: suse-cvrf

Описание

Security update for openssl-1_1-livepatches

This update for openssl-1_1-livepatches fixes the following issues:

  • CVE-2023-0286: Fixed X.400 address type confusion in X.509 GeneralName via livepatch (bsc#1207533).

Список пакетов

SUSE Linux Enterprise Live Patching 15 SP4
openssl-1_1-livepatches-0.1-150400.3.3.1
openSUSE Leap 15.4
openssl-1_1-livepatches-0.1-150400.3.3.1

Ссылки

Описание

There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.

Затронутые продукты
SUSE Linux Enterprise Live Patching 15 SP4:openssl-1_1-livepatches-0.1-150400.3.3.1
openSUSE Leap 15.4:openssl-1_1-livepatches-0.1-150400.3.3.1
Ссылки