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 Linux Enterprise Server for SAP Applications: 12-SP3 - 12-SP5

SUSE Linux Enterprise High Performance Computing: 12

SUSE Linux Enterprise Module for Public Cloud: 12

SUSE Linux Enterprise Server: 12-SP2-BCL - 12-SP5

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE OpenStack Cloud: 9

python3-M2Crypto-debuginfo: before 0.29.0-23.8.1

python3-M2Crypto: before 0.29.0-23.8.1

python-M2Crypto-debugsource: before 0.29.0-23.8.1

python-M2Crypto-debuginfo: before 0.29.0-23.8.1

python-M2Crypto: before 0.29.0-23.8.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:12-SP3:*:*:*:*:*:*:*
• 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_high_performance_computing:12:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_public_cloud:12:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP2-BCL:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP2-LTSS-ERICSSON:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:9:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_openstack_cloud:9:*:*:*:*:*:*:*
• cpe:2.3:a:suse:python3-m2crypto-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python3-m2crypto:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python-m2crypto-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python-m2crypto-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:python-m2crypto:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20222527-1/

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.