SUSE update for openCryptoki

1) Observable discrepancy

EUVDB-ID: #VU87279

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-0914

CWE-ID: CWE-203 - Observable discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a timing side-channel attack.

The vulnerability exists due to observable discrepancy when processing RSA PKCS#1 v1.5 padded ciphertexts. A remote attacker can perform unauthorized RSA ciphertext decryption or signing, even without access to the corresponding private key.

Mitigation

Update the affected package openCryptoki to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit 12: SP5

SUSE Linux Enterprise Server for SAP Applications 12: SP5

SUSE Linux Enterprise Server 12: SP5

SUSE Linux Enterprise High Performance Computing 12: SP5

openCryptoki-32bit: before 3.17.0-5.9.2

openCryptoki-64bit: before 3.17.0-5.9.2

openCryptoki: before 3.17.0-5.9.2

openCryptoki-debuginfo: before 3.17.0-5.9.2

openCryptoki-devel: before 3.17.0-5.9.2

openCryptoki-debugsource: before 3.17.0-5.9.2

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_12:SP5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:opencryptoki-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:opencryptoki-64bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:opencryptoki:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:opencryptoki-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:opencryptoki-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:opencryptoki-debugsource:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2024/suse-su-20242298-1/

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.