SUSE update for compat-openssl098

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 compat-openssl098 to the latest version.

Vulnerable software versions

Legacy Module: 12

SUSE Linux Enterprise Server for SAP Applications 12: SP1 - SP5

SUSE Linux Enterprise Server 12: SP1 - SP5

SUSE Linux Enterprise High Performance Computing 12: SP2 - SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP4

SUSE Linux Enterprise Server: 12-SP2-LTSS-ERICSSON

libopenssl0_9_8-debuginfo-32bit: before 0.9.8j-106.42.1

libopenssl0_9_8-debuginfo: before 0.9.8j-106.42.1

libopenssl0_9_8-32bit: before 0.9.8j-106.42.1

compat-openssl098-debugsource: before 0.9.8j-106.42.1

libopenssl0_9_8: before 0.9.8j-106.42.1

CPE2.3

• cpe:2.3:o:suse:legacy_module:12:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP2-LTSS-ERICSSON:*:*:*:*:*:*:*
• cpe:2.3:o:suse:libopenssl0_9_8-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libopenssl0_9_8-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libopenssl0_9_8-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:compat-openssl098-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libopenssl0_9_8:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20230581-1/

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.