SUSE update for openssl-1_1

1) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU71993

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-4304

CWE-ID: CWE-208 - Information Exposure Through Timing Discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain sensitive information.

The vulnerability exists due to a timing based side channel exists in the OpenSSL RSA Decryption implementation. A remote attacker can perform a Bleichenbacher style attack and decrypt data sent over the network.

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.

Mitigation

Update the affected package openssl-1_1 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP4 - SP5

SUSE Linux Enterprise Server 12 SP4 LTSS: 12-SP4

SUSE Linux Enterprise Server 12 SP4 ESPOS: 12-SP4

SUSE Linux Enterprise Server 12: SP4 - SP5

SUSE Linux Enterprise High Performance Computing 12: SP4 - SP5

SUSE OpenStack Cloud Crowbar: 9

SUSE OpenStack Cloud: 9

libopenssl-1_1-devel-32bit: before 1.1.1d-2.89.1

libopenssl-1_1-devel: before 1.1.1d-2.89.1

libopenssl1_1: before 1.1.1d-2.89.1

openssl-1_1: before 1.1.1d-2.89.1

libopenssl1_1-debuginfo: before 1.1.1d-2.89.1

libopenssl1_1-debuginfo-32bit: before 1.1.1d-2.89.1

libopenssl1_1-hmac: before 1.1.1d-2.89.1

libopenssl1_1-hmac-32bit: before 1.1.1d-2.89.1

openssl-1_1-debugsource: before 1.1.1d-2.89.1

libopenssl1_1-32bit: before 1.1.1d-2.89.1

openssl-1_1-debuginfo: before 1.1.1d-2.89.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12_sp4_ltss:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12_sp4_espos:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:9:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud:9:*:*:*:*:*:*:*
• cpe:2.3:a:suse:libopenssl-1_1-devel-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl-1_1-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl-1_1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1-hmac:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1-hmac-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl-1_1-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl-1_1-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232623-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.