SUSE update for rpm

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU59993

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3521

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to an error in RPM's signature functionality, as RPM does not check the binding signature of subkeys before importing them. A remote attacker with ability to add malicious subkey to a legitimate public key can run malicious code on the system.

Mitigation

Update the affected package rpm to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server 15 SP4 LTSS: 15-SP4

SUSE Linux Enterprise High Performance Computing LTSS 15: SP4

SUSE Linux Enterprise High Performance Computing ESPOS 15: SP4

SUSE Linux Enterprise Desktop 15 SP4 LTSS: 15-SP4

SUSE Linux Enterprise Micro: 5.4 - 5.5

openSUSE Leap Micro: 5.4

Python 3 Module: 15-SP5

Public Cloud Module: 15-SP4 - 15-SP5

Development Tools Module: 15-SP5

Basesystem Module: 15-SP5

SUSE Manager Proxy Module: 4.3

SUSE Linux Enterprise Micro for Rancher: 5.4

SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP5

SUSE Linux Enterprise Server 15: SP4 - SP5

SUSE Linux Enterprise Real Time 15: SP5

SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5

SUSE Linux Enterprise Desktop 15: SP5

SUSE Manager Server Module: 4.3

openSUSE Leap: 15.4 - 15.5

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

rpm-ndb-64bit-debuginfo: before 4.14.3-150400.59.16.1

rpm-ndb-64bit: before 4.14.3-150400.59.16.1

rpm-64bit-debuginfo: before 4.14.3-150400.59.16.1

rpm-64bit: before 4.14.3-150400.59.16.1

rpm-ndb-32bit: before 4.14.3-150400.59.16.1

rpm-ndb-32bit-debuginfo: before 4.14.3-150400.59.16.1

rpm-imaevmsign-debuginfo: before 4.14.3-150400.59.16.1

rpm-imaevmsign: before 4.14.3-150400.59.16.1

rpm-ndb-debuginfo: before 4.14.3-150400.59.16.1

rpm-ndb-debugsource: before 4.14.3-150400.59.16.1

rpm-ndb: before 4.14.3-150400.59.16.1

rpm-32bit-debuginfo: before 4.14.3-150400.59.16.1

rpm-32bit: before 4.14.3-150400.59.16.1

python3-rpm-debuginfo: before 4.14.3-150400.59.16.1

python-rpm-debugsource: before 4.14.3-150400.59.16.1

rpm-debuginfo: before 4.14.3-150400.59.16.1

python3-rpm: before 4.14.3-150400.59.16.1

rpm-debugsource: before 4.14.3-150400.59.16.1

rpm-build-debuginfo: before 4.14.3-150400.59.16.1

rpm-devel: before 4.14.3-150400.59.16.1

python311-rpm: before 4.14.3-150400.59.16.1

rpm-build: before 4.14.3-150400.59.16.1

python311-rpm-debuginfo: before 4.14.3-150400.59.16.1

rpm: before 4.14.3-150400.59.16.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp4_ltss:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_espos_15:SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15_sp4_ltss:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.5:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap_micro:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:python_3_module:15-SP5:*:*:*:*:*:*:
• cpe:2.3:o:suse:public_cloud_module:15-SP5:*:*:*:*:*:*:
• cpe:2.3:o:suse:public_cloud_module:15-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:development_tools_module:15-SP5:*:*:*:*:*:*:
• cpe:2.3:o:suse:basesystem_module:15-SP5:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_proxy_module:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP5:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP5:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP5:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP5:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP5:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_manager_server_module:4.3:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.5:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:
• 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:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241557-1/

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.