SUSE update for the Linux Kernel (Live Patch 23 for SLE 15 SP2)

1) Buffer overflow

EUVDB-ID: #VU60988

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/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-2022-0330

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a random memory access flaw caused by a missing TLB flush in Linux kernel GPU i915 kernel driver functionality. A local user can execute arbitrary code on the system with elevated privileges.

Mitigation

Update the affected package the Linux Kernel (Live Patch 23 for SLE 15 SP2) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications: 15-SP2

SUSE Linux Enterprise Server: 15-SP2

SUSE Linux Enterprise Module for Live Patching: 15-SP2

SUSE Linux Enterprise High Performance Computing: 15-SP2

kernel-livepatch-SLE15-SP2_Update_23-debugsource: before 7-150200.2.1

kernel-livepatch-5_3_18-24_99-default-debuginfo: before 7-150200.2.1

kernel-livepatch-5_3_18-24_99-default: before 7-150200.2.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221637-1/

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) Out-of-bounds write

EUVDB-ID: #VU63166

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1158

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due the KVM implementation in Linux kernel does not properly perform guest page table updates in some situations. A remote user on the guest operating system can trigger memory corruption and perform a denial of service attack against the host OS.

Mitigation

Update the affected package the Linux Kernel (Live Patch 23 for SLE 15 SP2) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications: 15-SP2

SUSE Linux Enterprise Server: 15-SP2

SUSE Linux Enterprise Module for Live Patching: 15-SP2

SUSE Linux Enterprise High Performance Computing: 15-SP2

kernel-livepatch-SLE15-SP2_Update_23-debugsource: before 7-150200.2.1

kernel-livepatch-5_3_18-24_99-default-debuginfo: before 7-150200.2.1

kernel-livepatch-5_3_18-24_99-default: before 7-150200.2.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221637-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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