SUSE update for the Linux Kernel (Live Patch 38 for SLE 15 SP3)

Published: 2024-08-27

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-47378 CVE-2021-47402
CWE-ID	CWE-416
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	SUSE Linux Enterprise Live Patching Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications 15 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 Operating systems & Components / Operating system SUSE Linux Enterprise Micro Operating systems & Components / Operating system openSUSE Leap Operating systems & Components / Operating system kernel-livepatch-5_3_18-150300_59_141-preempt-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_141-preempt Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_130-preempt Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_133-preempt Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_130-preempt-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_133-preempt-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_130-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_130-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_133-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP3_Update_38-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP3_Update_36-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_141-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_141-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP3_Update_35-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150300_59_133-default Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150200_24_178-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP2_Update_45-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-150200_24_178-default Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU91058

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47378

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the nvme_rdma_free_queue(), nvme_rdma_conn_established(), nvme_rdma_route_resolved() and nvme_rdma_cm_handler() functions in drivers/nvme/host/rdma.c. A local user can escalate privileges on the system.

Mitigation

Update the affected package the Linux Kernel (Live Patch 38 for SLE 15 SP3) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Live Patching: 15-SP2 - 15-SP3

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

SUSE Linux Enterprise Server 15: SP2 - SP3

SUSE Linux Enterprise High Performance Computing 15: SP2 - SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

openSUSE Leap: 15.3

kernel-livepatch-5_3_18-150300_59_141-preempt-debuginfo: before 12-150300.2.1

kernel-livepatch-5_3_18-150300_59_141-preempt: before 12-150300.2.1

kernel-livepatch-5_3_18-150300_59_130-preempt: before 14-150300.2.1

kernel-livepatch-5_3_18-150300_59_133-preempt: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_130-preempt-debuginfo: before 14-150300.2.1

kernel-livepatch-5_3_18-150300_59_133-preempt-debuginfo: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_130-default-debuginfo: before 14-150300.2.1

kernel-livepatch-5_3_18-150300_59_130-default: before 14-150300.2.1

kernel-livepatch-5_3_18-150300_59_133-default-debuginfo: before 13-150300.2.1

kernel-livepatch-SLE15-SP3_Update_38-debugsource: before 12-150300.2.1

kernel-livepatch-SLE15-SP3_Update_36-debugsource: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_141-default: before 12-150300.2.1

kernel-livepatch-5_3_18-150300_59_141-default-debuginfo: before 12-150300.2.1

kernel-livepatch-SLE15-SP3_Update_35-debugsource: before 14-150300.2.1

kernel-livepatch-5_3_18-150300_59_133-default: before 13-150300.2.1

kernel-livepatch-5_3_18-150200_24_178-default-debuginfo: before 9-150200.2.1

kernel-livepatch-SLE15-SP2_Update_45-debugsource: before 9-150200.2.1

kernel-livepatch-5_3_18-150200_24_178-default: before 9-150200.2.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2024/suse-su-20243030-1/

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.

2) Use-after-free

EUVDB-ID: #VU90142