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 Micro for Rancher: 5.3 - 5.4

SUSE Linux Enterprise Micro: 5.3 - 5.4

SUSE Linux Enterprise Server for SAP Applications 15: SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

SUSE Linux Enterprise Desktop 15: SP4

Basesystem Module: 15-SP4

openSUSE Leap Micro: 5.3

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

openssl-1_1-doc: before 1.1.1l-150400.7.42.1

libopenssl-1_1-devel-32bit: before 1.1.1l-150400.7.42.1

libopenssl1_1-32bit-debuginfo: before 1.1.1l-150400.7.42.1

libopenssl1_1-hmac-32bit: before 1.1.1l-150400.7.42.1

libopenssl1_1-32bit: before 1.1.1l-150400.7.42.1

libopenssl1_1-debuginfo: before 1.1.1l-150400.7.42.1

openssl-1_1-debugsource: before 1.1.1l-150400.7.42.1

libopenssl-1_1-devel: before 1.1.1l-150400.7.42.1

libopenssl1_1-hmac: before 1.1.1l-150400.7.42.1

openssl-1_1-debuginfo: before 1.1.1l-150400.7.42.1

openssl-1_1: before 1.1.1l-150400.7.42.1

libopenssl1_1: before 1.1.1l-150400.7.42.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:basesystem_module:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:a:suse:openssl-1_1-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl-1_1-devel-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1-hmac-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl-1_1-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl-1_1-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1-hmac:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl-1_1-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:openssl-1_1:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libopenssl1_1:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20232648-1/

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.