SUSE update for the Linux Kernel
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2021-21781 CVE-2021-22543 CVE-2021-3659 CVE-2021-37576 |
| CWE-ID | CWE-200 CWE-119 CWE-476 CWE-787 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #2 is available. |
| Vulnerable software |
SUSE Linux Enterprise High Availability Operating systems & Components / Operating system SUSE Linux Enterprise Module for Legacy Software Operating systems & Components / Operating system SUSE Linux Enterprise Workstation Extension Operating systems & Components / Operating system SUSE Linux Enterprise Module for Live Patching Operating systems & Components / Operating system SUSE MicroOS Operating systems & Components / Operating system SUSE Linux Enterprise Module for Development Tools Operating systems & Components / Operating system SUSE Linux Enterprise Module for Basesystem Operating systems & Components / Operating system ocfs2-kmp-default-debuginfo Operating systems & Components / Operating system package or component ocfs2-kmp-default Operating systems & Components / Operating system package or component gfs2-kmp-default-debuginfo Operating systems & Components / Operating system package or component gfs2-kmp-default Operating systems & Components / Operating system package or component dlm-kmp-default-debuginfo Operating systems & Components / Operating system package or component dlm-kmp-default Operating systems & Components / Operating system package or component cluster-md-kmp-default-debuginfo Operating systems & Components / Operating system package or component cluster-md-kmp-default Operating systems & Components / Operating system package or component kernel-macros Operating systems & Components / Operating system package or component kernel-devel Operating systems & Components / Operating system package or component kernel-preempt Operating systems & Components / Operating system package or component kernel-default-devel-debuginfo Operating systems & Components / Operating system package or component kernel-default-devel Operating systems & Components / Operating system package or component kernel-source Operating systems & Components / Operating system package or component kernel-docs Operating systems & Components / Operating system package or component kernel-preempt-devel-debuginfo Operating systems & Components / Operating system package or component kernel-preempt-devel Operating systems & Components / Operating system package or component kernel-preempt-debugsource Operating systems & Components / Operating system package or component kernel-preempt-debuginfo Operating systems & Components / Operating system package or component kernel-syms Operating systems & Components / Operating system package or component kernel-obs-build-debugsource Operating systems & Components / Operating system package or component kernel-obs-build Operating systems & Components / Operating system package or component reiserfs-kmp-default-debuginfo Operating systems & Components / Operating system package or component reiserfs-kmp-default Operating systems & Components / Operating system package or component kernel-livepatch-SLE15-SP2_Update_18-debugsource Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_78-default-debuginfo Operating systems & Components / Operating system package or component kernel-livepatch-5_3_18-24_78-default Operating systems & Components / Operating system package or component kernel-default-livepatch-devel Operating systems & Components / Operating system package or component kernel-default-livepatch Operating systems & Components / Operating system package or component kernel-preempt-extra-debuginfo Operating systems & Components / Operating system package or component kernel-preempt-extra Operating systems & Components / Operating system package or component kernel-default-extra-debuginfo Operating systems & Components / Operating system package or component kernel-default-extra Operating systems & Components / Operating system package or component kernel-default-debugsource Operating systems & Components / Operating system package or component kernel-default-debuginfo Operating systems & Components / Operating system package or component kernel-default-base Operating systems & Components / Operating system package or component kernel-default Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU54395
Risk: Low
CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-21781
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output in the ARM SIGPAGE functionality. A userland application can read the contents of the sigpage, which can leak kernel memory contents.
MitigationUpdate the affected package the Linux Kernel to the latest version.
Vulnerable software versionsSUSE Linux Enterprise High Availability: 15-SP2
SUSE Linux Enterprise Module for Legacy Software: 15-SP2
SUSE Linux Enterprise Workstation Extension: 15-SP2
SUSE Linux Enterprise Module for Live Patching: 15-SP2
SUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Development Tools: 15-SP2
SUSE Linux Enterprise Module for Basesystem: 15-SP2
ocfs2-kmp-default-debuginfo: before 5.3.18-24.78.1
ocfs2-kmp-default: before 5.3.18-24.78.1
gfs2-kmp-default-debuginfo: before 5.3.18-24.78.1
gfs2-kmp-default: before 5.3.18-24.78.1
dlm-kmp-default-debuginfo: before 5.3.18-24.78.1
dlm-kmp-default: before 5.3.18-24.78.1
cluster-md-kmp-default-debuginfo: before 5.3.18-24.78.1
cluster-md-kmp-default: before 5.3.18-24.78.1
kernel-macros: before 5.3.18-24.78.1
kernel-devel: before 5.3.18-24.78.1
kernel-preempt: before 5.3.18-24.78.1
kernel-default-devel-debuginfo: before 5.3.18-24.78.1
kernel-default-devel: before 5.3.18-24.78.1
kernel-source: before 5.3.18-24.78.1
kernel-docs: before 5.3.18-24.78.1
kernel-preempt-devel-debuginfo: before 5.3.18-24.78.1
kernel-preempt-devel: before 5.3.18-24.78.1
kernel-preempt-debugsource: before 5.3.18-24.78.1
kernel-preempt-debuginfo: before 5.3.18-24.78.1
kernel-syms: before 5.3.18-24.78.1
kernel-obs-build-debugsource: before 5.3.18-24.78.1
kernel-obs-build: before 5.3.18-24.78.1
reiserfs-kmp-default-debuginfo: before 5.3.18-24.78.1
reiserfs-kmp-default: before 5.3.18-24.78.1
kernel-livepatch-SLE15-SP2_Update_18-debugsource: before 1-5.3.1
kernel-livepatch-5_3_18-24_78-default-debuginfo: before 1-5.3.1
kernel-livepatch-5_3_18-24_78-default: before 1-5.3.1
kernel-default-livepatch-devel: before 5.3.18-24.78.1
kernel-default-livepatch: before 5.3.18-24.78.1
kernel-preempt-extra-debuginfo: before 5.3.18-24.78.1
kernel-preempt-extra: before 5.3.18-24.78.1
kernel-default-extra-debuginfo: before 5.3.18-24.78.1
kernel-default-extra: before 5.3.18-24.78.1
kernel-default-debugsource: before 5.3.18-24.78.1
kernel-default-debuginfo: before 5.3.18-24.78.1
kernel-default-base: before 5.3.18-24.78.1.9.36.1
kernel-default: before 5.3.18-24.78.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_high_availability:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_legacy_software:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_microos:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_development_tools:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:ocfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:ocfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:gfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:gfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dlm-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dlm-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:cluster-md-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:cluster-md-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-macros:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-source:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-docs:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-syms:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-obs-build-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-obs-build:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:reiserfs-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:reiserfs-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-sle15-sp2_update_18-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_3_18-24_78-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_3_18-24_78-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-livepatch-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-livepatch:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-extra:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-extra:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-base:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212756-1/
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) Buffer overflow
EUVDB-ID: #VU56018
Risk: Low
CVSSv4.0: 7.1 [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:P/U:Clear]
CVE-ID: CVE-2021-22543
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in Linux kernel when handling VM_IO|VM_PFNMAP vmas in KVM. A local user can can bypass RO checks and cause the pages to get freed while still accessible by the VMM and guest. As a result, an attacker with the ability to start and control a VM to read/write random pages of memory, can trigger memory corruption and execute arbitrary code with elevated privileges.
Update the affected package the Linux Kernel to the latest version.
Vulnerable software versionsSUSE Linux Enterprise High Availability: 15-SP2
SUSE Linux Enterprise Module for Legacy Software: 15-SP2
SUSE Linux Enterprise Workstation Extension: 15-SP2
SUSE Linux Enterprise Module for Live Patching: 15-SP2
SUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Development Tools: 15-SP2
SUSE Linux Enterprise Module for Basesystem: 15-SP2
ocfs2-kmp-default-debuginfo: before 5.3.18-24.78.1
ocfs2-kmp-default: before 5.3.18-24.78.1
gfs2-kmp-default-debuginfo: before 5.3.18-24.78.1
gfs2-kmp-default: before 5.3.18-24.78.1
dlm-kmp-default-debuginfo: before 5.3.18-24.78.1
dlm-kmp-default: before 5.3.18-24.78.1
cluster-md-kmp-default-debuginfo: before 5.3.18-24.78.1
cluster-md-kmp-default: before 5.3.18-24.78.1
kernel-macros: before 5.3.18-24.78.1
kernel-devel: before 5.3.18-24.78.1
kernel-preempt: before 5.3.18-24.78.1
kernel-default-devel-debuginfo: before 5.3.18-24.78.1
kernel-default-devel: before 5.3.18-24.78.1
kernel-source: before 5.3.18-24.78.1
kernel-docs: before 5.3.18-24.78.1
kernel-preempt-devel-debuginfo: before 5.3.18-24.78.1
kernel-preempt-devel: before 5.3.18-24.78.1
kernel-preempt-debugsource: before 5.3.18-24.78.1
kernel-preempt-debuginfo: before 5.3.18-24.78.1
kernel-syms: before 5.3.18-24.78.1
kernel-obs-build-debugsource: before 5.3.18-24.78.1
kernel-obs-build: before 5.3.18-24.78.1
reiserfs-kmp-default-debuginfo: before 5.3.18-24.78.1
reiserfs-kmp-default: before 5.3.18-24.78.1
kernel-livepatch-SLE15-SP2_Update_18-debugsource: before 1-5.3.1
kernel-livepatch-5_3_18-24_78-default-debuginfo: before 1-5.3.1
kernel-livepatch-5_3_18-24_78-default: before 1-5.3.1
kernel-default-livepatch-devel: before 5.3.18-24.78.1
kernel-default-livepatch: before 5.3.18-24.78.1
kernel-preempt-extra-debuginfo: before 5.3.18-24.78.1
kernel-preempt-extra: before 5.3.18-24.78.1
kernel-default-extra-debuginfo: before 5.3.18-24.78.1
kernel-default-extra: before 5.3.18-24.78.1
kernel-default-debugsource: before 5.3.18-24.78.1
kernel-default-debuginfo: before 5.3.18-24.78.1
kernel-default-base: before 5.3.18-24.78.1.9.36.1
kernel-default: before 5.3.18-24.78.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_high_availability:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_legacy_software:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_microos:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_development_tools:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:ocfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:ocfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:gfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:gfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dlm-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dlm-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:cluster-md-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:cluster-md-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-macros:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-source:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-docs:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-syms:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-obs-build-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-obs-build:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:reiserfs-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:reiserfs-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-sle15-sp2_update_18-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_3_18-24_78-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_3_18-24_78-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-livepatch-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-livepatch:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-extra:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-extra:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-base:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212756-1/
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. However, proof of concept for this vulnerability is available.
3) NULL pointer dereference
EUVDB-ID: #VU74547
Risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-3659
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a local usre to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the way the user closes the LR-WPAN connection within the IEEE 802.15.4 wireless networking subsystem. A local user can perform a denial of service (DoS) attack.
MitigationUpdate the affected package the Linux Kernel to the latest version.
Vulnerable software versionsSUSE Linux Enterprise High Availability: 15-SP2
SUSE Linux Enterprise Module for Legacy Software: 15-SP2
SUSE Linux Enterprise Workstation Extension: 15-SP2
SUSE Linux Enterprise Module for Live Patching: 15-SP2
SUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Development Tools: 15-SP2
SUSE Linux Enterprise Module for Basesystem: 15-SP2
ocfs2-kmp-default-debuginfo: before 5.3.18-24.78.1
ocfs2-kmp-default: before 5.3.18-24.78.1
gfs2-kmp-default-debuginfo: before 5.3.18-24.78.1
gfs2-kmp-default: before 5.3.18-24.78.1
dlm-kmp-default-debuginfo: before 5.3.18-24.78.1
dlm-kmp-default: before 5.3.18-24.78.1
cluster-md-kmp-default-debuginfo: before 5.3.18-24.78.1
cluster-md-kmp-default: before 5.3.18-24.78.1
kernel-macros: before 5.3.18-24.78.1
kernel-devel: before 5.3.18-24.78.1
kernel-preempt: before 5.3.18-24.78.1
kernel-default-devel-debuginfo: before 5.3.18-24.78.1
kernel-default-devel: before 5.3.18-24.78.1
kernel-source: before 5.3.18-24.78.1
kernel-docs: before 5.3.18-24.78.1
kernel-preempt-devel-debuginfo: before 5.3.18-24.78.1
kernel-preempt-devel: before 5.3.18-24.78.1
kernel-preempt-debugsource: before 5.3.18-24.78.1
kernel-preempt-debuginfo: before 5.3.18-24.78.1
kernel-syms: before 5.3.18-24.78.1
kernel-obs-build-debugsource: before 5.3.18-24.78.1
kernel-obs-build: before 5.3.18-24.78.1
reiserfs-kmp-default-debuginfo: before 5.3.18-24.78.1
reiserfs-kmp-default: before 5.3.18-24.78.1
kernel-livepatch-SLE15-SP2_Update_18-debugsource: before 1-5.3.1
kernel-livepatch-5_3_18-24_78-default-debuginfo: before 1-5.3.1
kernel-livepatch-5_3_18-24_78-default: before 1-5.3.1
kernel-default-livepatch-devel: before 5.3.18-24.78.1
kernel-default-livepatch: before 5.3.18-24.78.1
kernel-preempt-extra-debuginfo: before 5.3.18-24.78.1
kernel-preempt-extra: before 5.3.18-24.78.1
kernel-default-extra-debuginfo: before 5.3.18-24.78.1
kernel-default-extra: before 5.3.18-24.78.1
kernel-default-debugsource: before 5.3.18-24.78.1
kernel-default-debuginfo: before 5.3.18-24.78.1
kernel-default-base: before 5.3.18-24.78.1.9.36.1
kernel-default: before 5.3.18-24.78.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_high_availability:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_legacy_software:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_microos:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_development_tools:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:ocfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:ocfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:gfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:gfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dlm-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dlm-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:cluster-md-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:cluster-md-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-macros:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-source:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-docs:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-syms:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-obs-build-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-obs-build:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:reiserfs-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:reiserfs-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-sle15-sp2_update_18-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_3_18-24_78-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_3_18-24_78-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-livepatch-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-livepatch:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-extra:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-extra:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-base:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212756-1/
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.
4) Out-of-bounds write
EUVDB-ID: #VU57101
Risk: Medium
CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-37576
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to a boundary error in arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform. An attacker on KVM guest OS can cause host OS memory corruption via rtas_args.nargs and execute arbitrary code on the host OS.
Update the affected package the Linux Kernel to the latest version.
Vulnerable software versionsSUSE Linux Enterprise High Availability: 15-SP2
SUSE Linux Enterprise Module for Legacy Software: 15-SP2
SUSE Linux Enterprise Workstation Extension: 15-SP2
SUSE Linux Enterprise Module for Live Patching: 15-SP2
SUSE MicroOS: 5.0
SUSE Linux Enterprise Module for Development Tools: 15-SP2
SUSE Linux Enterprise Module for Basesystem: 15-SP2
ocfs2-kmp-default-debuginfo: before 5.3.18-24.78.1
ocfs2-kmp-default: before 5.3.18-24.78.1
gfs2-kmp-default-debuginfo: before 5.3.18-24.78.1
gfs2-kmp-default: before 5.3.18-24.78.1
dlm-kmp-default-debuginfo: before 5.3.18-24.78.1
dlm-kmp-default: before 5.3.18-24.78.1
cluster-md-kmp-default-debuginfo: before 5.3.18-24.78.1
cluster-md-kmp-default: before 5.3.18-24.78.1
kernel-macros: before 5.3.18-24.78.1
kernel-devel: before 5.3.18-24.78.1
kernel-preempt: before 5.3.18-24.78.1
kernel-default-devel-debuginfo: before 5.3.18-24.78.1
kernel-default-devel: before 5.3.18-24.78.1
kernel-source: before 5.3.18-24.78.1
kernel-docs: before 5.3.18-24.78.1
kernel-preempt-devel-debuginfo: before 5.3.18-24.78.1
kernel-preempt-devel: before 5.3.18-24.78.1
kernel-preempt-debugsource: before 5.3.18-24.78.1
kernel-preempt-debuginfo: before 5.3.18-24.78.1
kernel-syms: before 5.3.18-24.78.1
kernel-obs-build-debugsource: before 5.3.18-24.78.1
kernel-obs-build: before 5.3.18-24.78.1
reiserfs-kmp-default-debuginfo: before 5.3.18-24.78.1
reiserfs-kmp-default: before 5.3.18-24.78.1
kernel-livepatch-SLE15-SP2_Update_18-debugsource: before 1-5.3.1
kernel-livepatch-5_3_18-24_78-default-debuginfo: before 1-5.3.1
kernel-livepatch-5_3_18-24_78-default: before 1-5.3.1
kernel-default-livepatch-devel: before 5.3.18-24.78.1
kernel-default-livepatch: before 5.3.18-24.78.1
kernel-preempt-extra-debuginfo: before 5.3.18-24.78.1
kernel-preempt-extra: before 5.3.18-24.78.1
kernel-default-extra-debuginfo: before 5.3.18-24.78.1
kernel-default-extra: before 5.3.18-24.78.1
kernel-default-debugsource: before 5.3.18-24.78.1
kernel-default-debuginfo: before 5.3.18-24.78.1
kernel-default-base: before 5.3.18-24.78.1.9.36.1
kernel-default: before 5.3.18-24.78.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_high_availability:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_legacy_software:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_live_patching:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_microos:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_development_tools:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:ocfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:ocfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:gfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:gfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dlm-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dlm-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:cluster-md-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:cluster-md-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-macros:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-source:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-docs:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-syms:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-obs-build-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-obs-build:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:reiserfs-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:reiserfs-kmp-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-sle15-sp2_update_18-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_3_18-24_78-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-livepatch-5_3_18-24_78-default:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-livepatch-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-livepatch:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-preempt-extra:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-extra:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default-base:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:kernel-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212756-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
