SUSE update for python-rsa

1) Covert Timing Channel

EUVDB-ID: #VU73108

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25658

CWE-ID: CWE-385 - Covert Timing Channel

Exploit availability: No

Description

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

The vulnerability exists due to a covert timing channel. A remote attacker can perform Bleichenbacher timing attack and decrypt parts of data via the RSA decryption API.

Mitigation

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

Vulnerable software versions

Public Cloud 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

python-rsa: before 3.1.4-12.19.2

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20230648-1/

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.