SUSE update for python-M2Crypto

1) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU65771

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-2020-25657

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to possibility of the Bleichenbacher timing attack in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. A remote attacker can gain access to sensitive information.

Mitigation

Update the affected package python-M2Crypto to the latest version.

Vulnerable software versions

SUSE Enterprise Storage: 6 - 7.1

SUSE Linux Enterprise Storage: 7.1

SUSE Linux Enterprise Module for Public Cloud: 15

SUSE Linux Enterprise Module for Python2: 15-SP3

SUSE Linux Enterprise Server for SAP Applications: 15-SP3 - 15

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15

SUSE Linux Enterprise Server: 15-LTSS - 15-SP3

SUSE Manager Retail Branch Server: 4.1 - 4.2

SUSE Linux Enterprise Micro: 5.1 - 5.2

SUSE Manager Server: 4.1 - 4.2

SUSE Manager Proxy: 4.1 - 4.2

SUSE Linux Enterprise Server for SAP: 15-SP1 - 15-SP2

SUSE Linux Enterprise Desktop: 15-SP3

SUSE CaaS Platform: 4.0

openSUSE Leap: 15.3 - 15.4

SUSE Linux Enterprise Module for Basesystem: 15-SP3

python-M2Crypto-doc: before 0.35.2-150000.3.14.1

python3-M2Crypto-debuginfo: before 0.35.2-150000.3.14.1

python3-M2Crypto: before 0.35.2-150000.3.14.1

python2-M2Crypto-debuginfo: before 0.35.2-150000.3.14.1

python2-M2Crypto: before 0.35.2-150000.3.14.1

python-M2Crypto-debugsource: before 0.35.2-150000.3.14.1

python-M2Crypto-debuginfo: before 0.35.2-150000.3.14.1

CPE2.3

• cpe:2.3:o:suse:suse_enterprise_storage:6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_enterprise_storage:7.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_storage:7.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_public_cloud:15:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_python2:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-ESPOS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_caas_platform:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:a:suse:python-m2crypto-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python3-m2crypto-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python3-m2crypto:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python2-m2crypto-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python2-m2crypto:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python-m2crypto-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python-m2crypto-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222562-1/

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.