SUSE update for the Linux Kernel (Live Patch 41 for SLE 15 SP3)

1) Use-after-free

EUVDB-ID: #VU91058

Risk: Low

CVSSv3.1: 7.7 [AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

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 41 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_150-preempt: before 10-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-preempt-debuginfo: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_138-preempt: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_144-preempt-debuginfo: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_138-preempt-debuginfo: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_144-preempt: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_150-preempt-debuginfo: before 10-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-preempt: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_144-default-debuginfo: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_144-default: before 11-150300.2.1

kernel-livepatch-SLE15-SP3_Update_37-debugsource: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_150-default-debuginfo: before 10-150300.2.1

kernel-livepatch-SLE15-SP3_Update_39-debugsource: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_138-default: before 13-150300.2.1

kernel-livepatch-SLE15-SP3_Update_41-debugsource: before 10-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-default-debuginfo: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_138-default-debuginfo: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-default: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_150-default: before 10-150300.2.1

kernel-livepatch-SLE15-SP3_Update_40-debugsource: before 11-150300.2.1

kernel-livepatch-5_3_18-150200_24_163-default-debuginfo: before 13-150200.2.1

kernel-livepatch-5_3_18-150200_24_172-default-debuginfo: before 11-150200.2.1

kernel-livepatch-SLE15-SP2_Update_44-debugsource: before 12-150200.2.1

kernel-livepatch-SLE15-SP2_Update_39-debugsource: before 14-150200.2.1

kernel-livepatch-5_3_18-150200_24_172-default: before 11-150200.2.1

kernel-livepatch-SLE15-SP2_Update_40-debugsource: before 13-150200.2.1

kernel-livepatch-5_3_18-150200_24_163-default: before 13-150200.2.1

kernel-livepatch-SLE15-SP2_Update_43-debugsource: before 11-150200.2.1

kernel-livepatch-5_3_18-150200_24_175-default-debuginfo: before 12-150200.2.1

kernel-livepatch-5_3_18-150200_24_160-default: before 14-150200.2.1

kernel-livepatch-5_3_18-150200_24_160-default-debuginfo: before 14-150200.2.1

kernel-livepatch-5_3_18-150200_24_175-default: before 12-150200.2.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.3:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20243041-1/

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

Risk: Low

CVSSv3.1: 7.7 [AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-47402

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 fl_walk() function in net/sched/cls_flower.c. A local user can escalate privileges on the system.

Mitigation

Update the affected package the Linux Kernel (Live Patch 41 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_150-preempt: before 10-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-preempt-debuginfo: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_138-preempt: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_144-preempt-debuginfo: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_138-preempt-debuginfo: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_144-preempt: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_150-preempt-debuginfo: before 10-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-preempt: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_144-default-debuginfo: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_144-default: before 11-150300.2.1

kernel-livepatch-SLE15-SP3_Update_37-debugsource: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_150-default-debuginfo: before 10-150300.2.1

kernel-livepatch-SLE15-SP3_Update_39-debugsource: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_138-default: before 13-150300.2.1

kernel-livepatch-SLE15-SP3_Update_41-debugsource: before 10-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-default-debuginfo: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_138-default-debuginfo: before 13-150300.2.1

kernel-livepatch-5_3_18-150300_59_147-default: before 11-150300.2.1

kernel-livepatch-5_3_18-150300_59_150-default: before 10-150300.2.1

kernel-livepatch-SLE15-SP3_Update_40-debugsource: before 11-150300.2.1

kernel-livepatch-5_3_18-150200_24_163-default-debuginfo: before 13-150200.2.1

kernel-livepatch-5_3_18-150200_24_172-default-debuginfo: before 11-150200.2.1

kernel-livepatch-SLE15-SP2_Update_44-debugsource: before 12-150200.2.1

kernel-livepatch-SLE15-SP2_Update_39-debugsource: before 14-150200.2.1

kernel-livepatch-5_3_18-150200_24_172-default: before 11-150200.2.1

kernel-livepatch-SLE15-SP2_Update_40-debugsource: before 13-150200.2.1

kernel-livepatch-5_3_18-150200_24_163-default: before 13-150200.2.1

kernel-livepatch-SLE15-SP2_Update_43-debugsource: before 11-150200.2.1

kernel-livepatch-5_3_18-150200_24_175-default-debuginfo: before 12-150200.2.1

kernel-livepatch-5_3_18-150200_24_160-default: before 14-150200.2.1

kernel-livepatch-5_3_18-150200_24_160-default-debuginfo: before 14-150200.2.1

kernel-livepatch-5_3_18-150200_24_175-default: before 12-150200.2.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.2:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:
• cpe:2.3:o:suse:opensuse_leap:15.3:*:*:*:*:*:*:

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20243041-1/

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.