SUSE update for polkit

1) Resource exhaustion

EUVDB-ID: #VU61268

Risk: Low

CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2021-4115

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to process file descriptor exhaustion in polkit. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package polkit to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Desktop: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

typelib-1_0-Polkit-1_0: before 0.113-5.27.1

polkit: before 0.113-5.27.1

libpolkit0-debuginfo: before 0.113-5.27.1

libpolkit0: before 0.113-5.27.1

polkit-devel-debuginfo: before 0.113-5.27.1

polkit-devel: before 0.113-5.27.1

polkit-debuginfo: before 0.113-5.27.1

polkit-debugsource: before 0.113-5.27.1

libpolkit0-debuginfo-32bit: before 0.113-5.27.1

libpolkit0-32bit: before 0.113-5.27.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop:12-SP5:*:*:*:*:*:*:*
• 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:a:suse:typelib-1_0-polkit-1_0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:polkit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libpolkit0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libpolkit0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:polkit-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:polkit-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:polkit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:polkit-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libpolkit0-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libpolkit0-32bit:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20220524-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.