SUSE update for mozilla-nss

1) Heap-based buffer overflow

EUVDB-ID: #VU58477

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43527

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when handling DER-encoded DSA or RSA-PSS signatures. A remote attacker can send specially crafted signatures encoded within CMS, S/MIME, PKCS #7, or PKCS #12 to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package mozilla-nss to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15 - 15-SP1

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP1-LTSS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE MicroOS: 5.0 - 5.1

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

SUSE Linux Enterprise Module for Server Applications: 15-SP2 - 15-SP3

SUSE Linux Enterprise Module for Basesystem: 15-SP2 - 15-SP3

mozilla-nss-certs-32bit-debuginfo: before 3.68.1-3.61.1

mozilla-nss-certs-32bit: before 3.68.1-3.61.1

mozilla-nss-32bit-debuginfo: before 3.68.1-3.61.1

mozilla-nss-32bit: before 3.68.1-3.61.1

libsoftokn3-hmac-32bit: before 3.68.1-3.61.1

libsoftokn3-32bit-debuginfo: before 3.68.1-3.61.1

libsoftokn3-32bit: before 3.68.1-3.61.1

libfreebl3-hmac-32bit: before 3.68.1-3.61.1

libfreebl3-32bit-debuginfo: before 3.68.1-3.61.1

libfreebl3-32bit: before 3.68.1-3.61.1

mozilla-nss-sysinit-debuginfo: before 3.68.1-3.61.1

mozilla-nss-sysinit: before 3.68.1-3.61.1

mozilla-nss-devel: before 3.68.1-3.61.1

mozilla-nss-tools-debuginfo: before 3.68.1-3.61.1

mozilla-nss-tools: before 3.68.1-3.61.1

mozilla-nss-debugsource: before 3.68.1-3.61.1

mozilla-nss-debuginfo: before 3.68.1-3.61.1

mozilla-nss-certs-debuginfo: before 3.68.1-3.61.1

mozilla-nss-certs: before 3.68.1-3.61.1

mozilla-nss: before 3.68.1-3.61.1

libsoftokn3-hmac: before 3.68.1-3.61.1

libsoftokn3-debuginfo: before 3.68.1-3.61.1

libsoftokn3: before 3.68.1-3.61.1

libfreebl3-hmac: before 3.68.1-3.61.1

libfreebl3-debuginfo: before 3.68.1-3.61.1

libfreebl3: before 3.68.1-3.61.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP1:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-LTSS:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-ESPOS:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-LTSS:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_enterprise_storage:6:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_caas_platform:4.0:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_microos:5.1:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_microos:5.0:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-LTSS:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP1-BCL:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP1-LTSS:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_server_applications:15-SP2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_server_applications:15-SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213934-1/

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.