SUSE update for the Linux Kernel (Live Patch 22 for SLE 15 SP4)

1) Resource exhaustion

EUVDB-ID: #VU88378

Risk: Medium

CVSSv4.0: 6.6 [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:U/U:Green]

CVE-ID: CVE-2023-52340

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to an error when processing very large ICMPv6 packets. A remote attacker can send a flood of IPv6 ICMP6 PTB messages, cause the high lock contention and increased CPU usage, leading to a denial of service.

Successful vulnerability exploitation requires a attacker to be on the local network or have a high bandwidth connection.

Mitigation

Update the affected package the Linux Kernel (Live Patch 22 for SLE 15 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.3 - 5.4

SUSE Linux Enterprise Live Patching: 15-SP4

SUSE Linux Enterprise Server for SAP Applications 15: SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

openSUSE Leap: 15.4

kernel-livepatch-SLE15-SP4_Update_21-debugsource: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_103-default-debuginfo: before 3-150400.2.1

kernel-livepatch-SLE15-SP4_Update_22-debugsource: before 3-150400.2.1

kernel-livepatch-5_14_21-150400_24_100-default-debuginfo: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_100-default: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_103-default: before 3-150400.2.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp4_update_21-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_103-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp4_update_22-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_100-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_100-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_103-default:*:*:*:*:*:suse_linux:*:*

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241298-1/

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.

2) Integer underflow

EUVDB-ID: #VU86552

Risk: High

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

CVE-ID: CVE-2024-0565

CWE-ID: CWE-191 - Integer underflow

Exploit availability: No

Description

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

The vulnerability exists due to integer underflow within the receive_encrypted_standard() function in fs/smb/client/smb2ops.c in the SMB Client sub-component in the Linux Kernel. A remote attacker can trick the victim to connect to a malicious SMB server, trigger an integer underflow 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 the Linux Kernel (Live Patch 22 for SLE 15 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.3 - 5.4

SUSE Linux Enterprise Live Patching: 15-SP4

SUSE Linux Enterprise Server for SAP Applications 15: SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

openSUSE Leap: 15.4

kernel-livepatch-SLE15-SP4_Update_21-debugsource: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_103-default-debuginfo: before 3-150400.2.1

kernel-livepatch-SLE15-SP4_Update_22-debugsource: before 3-150400.2.1

kernel-livepatch-5_14_21-150400_24_100-default-debuginfo: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_100-default: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_103-default: before 3-150400.2.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp4_update_21-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_103-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp4_update_22-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_100-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_100-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_103-default:*:*:*:*:*:suse_linux:*:*

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241298-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Use-after-free

EUVDB-ID: #VU86578

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-2024-1085

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 netfilter nf_tables component in Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code on the system.

Mitigation

Update the affected package the Linux Kernel (Live Patch 22 for SLE 15 SP4) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.3 - 5.4

SUSE Linux Enterprise Live Patching: 15-SP4

SUSE Linux Enterprise Server for SAP Applications 15: SP4

SUSE Linux Enterprise Server 15: SP4

SUSE Linux Enterprise Real Time 15: SP4

SUSE Linux Enterprise High Performance Computing 15: SP4

openSUSE Leap: 15.4

kernel-livepatch-SLE15-SP4_Update_21-debugsource: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_103-default-debuginfo: before 3-150400.2.1

kernel-livepatch-SLE15-SP4_Update_22-debugsource: before 3-150400.2.1

kernel-livepatch-5_14_21-150400_24_100-default-debuginfo: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_100-default: before 5-150400.2.1

kernel-livepatch-5_14_21-150400_24_103-default: before 3-150400.2.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp4_update_21-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_103-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-sle15-sp4_update_22-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_100-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_100-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:o:suse:kernel-livepatch-5_14_21-150400_24_103-default:*:*:*:*:*:suse_linux:*:*

External links

http://www.suse.com/support/update/announcement/2024/suse-su-20241298-1/

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.