SUSE update for kubernetes1.26

1) Resource exhaustion

EUVDB-ID: #VU88184

Risk: Medium

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2023-45288

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient limitations placed on the amount of CONTINUATION frames that can be sent within a single HTTP/2 stream. A remote attacker can send specially crafted HTTP/2 requests to the server and perform a denial of service (DoS) attack.

Mitigation

Update the affected package kubernetes1.26 to the latest version.

Vulnerable software versions

Containers Module: 15-SP5 - 15-SP6

SUSE Linux Enterprise Real Time 15: SP5 - SP6

openSUSE Leap: 15.4 - 15.6

SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP6

SUSE Linux Enterprise Server 15: SP4 - SP6

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 High Performance Computing 15: SP4 - SP5

kubernetes1.26-client-bash-completion: before 1.26.15-150400.9.14.1

kubernetes1.26-client-fish-completion: before 1.26.15-150400.9.14.1

kubernetes1.26-proxy: before 1.26.15-150400.9.14.1

kubernetes1.26-client: before 1.26.15-150400.9.14.1

kubernetes1.26-client-common: before 1.26.15-150400.9.14.1

kubernetes1.26-controller-manager: before 1.26.15-150400.9.14.1

kubernetes1.26-kubeadm: before 1.26.15-150400.9.14.1

kubernetes1.26-kubelet-common: before 1.26.15-150400.9.14.1

kubernetes1.26-kubelet: before 1.26.15-150400.9.14.1

kubernetes1.26-apiserver: before 1.26.15-150400.9.14.1

kubernetes1.26-scheduler: before 1.26.15-150400.9.14.1

CPE2.3

• cpe:2.3:o:suse:containers_module:15-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:containers_module:15-SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• 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:SP6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• 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_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:kubernetes1.26-client-bash-completion:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kubernetes1.26-client-fish-completion:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kubernetes1.26-proxy:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kubernetes1.26-client:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kubernetes1.26-client-common:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kubernetes1.26-controller-manager:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kubernetes1.26-kubeadm:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kubernetes1.26-kubelet-common:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kubernetes1.26-kubelet:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kubernetes1.26-apiserver:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kubernetes1.26-scheduler:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2024/suse-su-20243155-1/

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. However, proof of concept for this vulnerability is available.