SUSE update for the Linux Kernel (Live Patch 40 for SLE 12 SP3)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2020-0429 CVE-2021-28688 CVE-2021-37576 |
| CWE-ID | CWE-416 CWE-665 CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system kgraft-patch-4_4_180-94_147-default-debuginfo Operating systems & Components / Operating system package or component kgraft-patch-4_4_180-94_147-default Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Use-after-free
EUVDB-ID: #VU47047
Risk: Low
CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2020-0429
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local privileged user to execute arbitrary code.
In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-152735806
MitigationUpdate the affected package the Linux Kernel (Live Patch 40 for SLE 12 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 12-SP3
SUSE Linux Enterprise Server: 12-SP3-LTSS
kgraft-patch-4_4_180-94_147-default-debuginfo: before 2-2.1
kgraft-patch-4_4_180-94_147-default: before 2-2.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP3-LTSS:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kgraft-patch-4_4_180-94_147-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kgraft-patch-4_4_180-94_147-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212846-1/
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) Improper Initialization
EUVDB-ID: #VU63658
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-2021-28688
CWE-ID:
CWE-665 - Improper Initialization
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to improper initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. A local user can perform a denial of service attack.
MitigationUpdate the affected package the Linux Kernel (Live Patch 40 for SLE 12 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 12-SP3
SUSE Linux Enterprise Server: 12-SP3-LTSS
kgraft-patch-4_4_180-94_147-default-debuginfo: before 2-2.1
kgraft-patch-4_4_180-94_147-default: before 2-2.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP3-LTSS:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kgraft-patch-4_4_180-94_147-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kgraft-patch-4_4_180-94_147-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212846-1/
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.
3) 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 (Live Patch 40 for SLE 12 SP3) to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Server for SAP: 12-SP3
SUSE Linux Enterprise Server: 12-SP3-LTSS
kgraft-patch-4_4_180-94_147-default-debuginfo: before 2-2.1
kgraft-patch-4_4_180-94_147-default: before 2-2.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP3-LTSS:*:*:*:*:*:*:*
- cpe:2.3:a:suse:kgraft-patch-4_4_180-94_147-default-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:kgraft-patch-4_4_180-94_147-default:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20212846-1/
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.
