SUSE update for gnutls

1) Inadequate Encryption Strength

EUVDB-ID: #VU72125

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-0361

CWE-ID: CWE-326 - Inadequate Encryption Strength

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error in the TLS RSA key exchange. A remote attacker can perform Bleichenbacher oracle attack and decrypt information.

Mitigation

Update the affected package gnutls to the latest version.

Vulnerable software versions

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

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

openSUSE Leap: 15.4

libgnutls30-hmac-32bit: before 3.7.3-150400.4.27.1

libgnutls30-32bit: before 3.7.3-150400.4.27.1

libgnutls-devel-32bit: before 3.7.3-150400.4.27.1

libgnutls30-32bit-debuginfo: before 3.7.3-150400.4.27.1

libgnutls30-hmac: before 3.7.3-150400.4.27.1

gnutls: before 3.7.3-150400.4.27.1

libgnutlsxx-devel: before 3.7.3-150400.4.27.1

gnutls-debuginfo: before 3.7.3-150400.4.27.1

libgnutls30: before 3.7.3-150400.4.27.1

libgnutls30-debuginfo: before 3.7.3-150400.4.27.1

libgnutls-devel: before 3.7.3-150400.4.27.1

gnutls-guile: before 3.7.3-150400.4.27.1

gnutls-debugsource: before 3.7.3-150400.4.27.1

gnutls-guile-debuginfo: before 3.7.3-150400.4.27.1

libgnutlsxx28-debuginfo: before 3.7.3-150400.4.27.1

libgnutlsxx28: before 3.7.3-150400.4.27.1

CPE2.3

• 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: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:o:suse:libgnutls30-hmac-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libgnutls30-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libgnutls-devel-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libgnutls30-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libgnutls30-hmac:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:gnutls:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libgnutlsxx-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:gnutls-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libgnutls30:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libgnutls30-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libgnutls-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:gnutls-guile:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:gnutls-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:gnutls-guile-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libgnutlsxx28-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:libgnutlsxx28:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20230475-1/

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.