Описание
Security update for openssl-1_1
This update for openssl-1_1 fixes the following issues:
-
CVE-2022-4304: Reworked the fix for the Timing-Oracle in RSA decryption. The previous fix for this timing side channel turned out to cause a severe 2-3x performance regression in the typical use case (bsc#1207534).
-
Update further expiring certificates that affect tests [bsc#1201627]
Список пакетов
Image SLES12-SP5-Azure-BYOS
Image SLES12-SP5-Azure-Basic-On-Demand
Image SLES12-SP5-Azure-HPC-BYOS
Image SLES12-SP5-Azure-HPC-On-Demand
Image SLES12-SP5-Azure-SAP-BYOS
Image SLES12-SP5-Azure-SAP-On-Demand
Image SLES12-SP5-Azure-Standard-On-Demand
Image SLES12-SP5-EC2-BYOS
Image SLES12-SP5-EC2-ECS-On-Demand
Image SLES12-SP5-EC2-On-Demand
Image SLES12-SP5-EC2-SAP-BYOS
Image SLES12-SP5-EC2-SAP-On-Demand
Image SLES12-SP5-GCE-BYOS
Image SLES12-SP5-GCE-On-Demand
Image SLES12-SP5-GCE-SAP-BYOS
Image SLES12-SP5-GCE-SAP-On-Demand
Image SLES12-SP5-SAP-Azure-LI-BYOS-Production
Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production
SUSE Linux Enterprise Server 12 SP4-ESPOS
SUSE Linux Enterprise Server 12 SP4-LTSS
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP4
SUSE Linux Enterprise Server for SAP Applications 12 SP5
SUSE Linux Enterprise Software Development Kit 12 SP5
SUSE OpenStack Cloud 9
SUSE OpenStack Cloud Crowbar 9
Ссылки
- Link for SUSE-SU-2023:2623-1
- E-Mail link for SUSE-SU-2023:2623-1
- SUSE Security Ratings
- SUSE Bug 1201627
- SUSE Bug 1207534
- SUSE CVE CVE-2022-4304 page
Описание
A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.
Затронутые продукты
Ссылки
- CVE-2022-4304
- SUSE Bug 1207534
- SUSE Bug 1210067
- SUSE Bug 1213146
- SUSE Bug 1213289
- SUSE Bug 1215014