SUSE update for the Linux Kernel

1) Cryptographic Issues

EUVDB-ID: #VU109316

Risk: Medium

CVSSv4.0: 2.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-3702

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access top sensitive information.

The vulnerability exists due to improper input validation in WIFI driver(Krook). A remote attacker can temporary disable WPA2 or the WPA/WPA2 mixed-mode encryption and intercept traffic in clear text.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.91.2

ocfs2-kmp-default: before 4.12.14-122.91.2

gfs2-kmp-default-debuginfo: before 4.12.14-122.91.2

gfs2-kmp-default: before 4.12.14-122.91.2

dlm-kmp-default-debuginfo: before 4.12.14-122.91.2

dlm-kmp-default: before 4.12.14-122.91.2

cluster-md-kmp-default-debuginfo: before 4.12.14-122.91.2

cluster-md-kmp-default: before 4.12.14-122.91.2

kgraft-patch-4_12_14-122_91-default: before 1-8.3.2

kernel-default-kgraft-devel: before 4.12.14-122.91.2

kernel-default-kgraft: before 4.12.14-122.91.2

kernel-default-man: before 4.12.14-122.91.2

kernel-default-devel-debuginfo: before 4.12.14-122.91.2

kernel-source: before 4.12.14-122.91.2

kernel-macros: before 4.12.14-122.91.2

kernel-devel: before 4.12.14-122.91.2

kernel-syms: before 4.12.14-122.91.2

kernel-default-devel: before 4.12.14-122.91.2

kernel-default-base-debuginfo: before 4.12.14-122.91.2

kernel-default-base: before 4.12.14-122.91.2

kernel-default: before 4.12.14-122.91.2

kernel-docs: before 4.12.14-122.91.2

kernel-obs-build-debugsource: before 4.12.14-122.91.2

kernel-obs-build: before 4.12.14-122.91.2

kernel-default-extra-debuginfo: before 4.12.14-122.91.2

kernel-default-extra: before 4.12.14-122.91.2

kernel-default-debugsource: before 4.12.14-122.91.2

kernel-default-debuginfo: before 4.12.14-122.91.2

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_high_availability:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:ocfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:ocfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dlm-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dlm-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cluster-md-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cluster-md-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kgraft-patch-4_12_14-122_91-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-kgraft-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-kgraft:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-man:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-source:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-macros:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-syms:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-base-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-base:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-docs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-obs-build-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-obs-build:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-extra:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20213386-1/

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.

2) Memory leak

EUVDB-ID: #VU63813

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-2021-3744

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c. A local user can force the application to leak memory and perform denial of service attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.91.2

ocfs2-kmp-default: before 4.12.14-122.91.2

gfs2-kmp-default-debuginfo: before 4.12.14-122.91.2

gfs2-kmp-default: before 4.12.14-122.91.2

dlm-kmp-default-debuginfo: before 4.12.14-122.91.2

dlm-kmp-default: before 4.12.14-122.91.2

cluster-md-kmp-default-debuginfo: before 4.12.14-122.91.2

cluster-md-kmp-default: before 4.12.14-122.91.2

kgraft-patch-4_12_14-122_91-default: before 1-8.3.2

kernel-default-kgraft-devel: before 4.12.14-122.91.2

kernel-default-kgraft: before 4.12.14-122.91.2

kernel-default-man: before 4.12.14-122.91.2

kernel-default-devel-debuginfo: before 4.12.14-122.91.2

kernel-source: before 4.12.14-122.91.2

kernel-macros: before 4.12.14-122.91.2

kernel-devel: before 4.12.14-122.91.2

kernel-syms: before 4.12.14-122.91.2

kernel-default-devel: before 4.12.14-122.91.2

kernel-default-base-debuginfo: before 4.12.14-122.91.2

kernel-default-base: before 4.12.14-122.91.2

kernel-default: before 4.12.14-122.91.2

kernel-docs: before 4.12.14-122.91.2

kernel-obs-build-debugsource: before 4.12.14-122.91.2

kernel-obs-build: before 4.12.14-122.91.2

kernel-default-extra-debuginfo: before 4.12.14-122.91.2

kernel-default-extra: before 4.12.14-122.91.2

kernel-default-debugsource: before 4.12.14-122.91.2

kernel-default-debuginfo: before 4.12.14-122.91.2

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_high_availability:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:ocfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:ocfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dlm-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dlm-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cluster-md-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cluster-md-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kgraft-patch-4_12_14-122_91-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-kgraft-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-kgraft:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-man:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-source:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-macros:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-syms:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-base-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-base:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-docs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-obs-build-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-obs-build:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-extra:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20213386-1/

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) Use-after-free

EUVDB-ID: #VU63767

Risk: Low

CVSSv4.0: 4.8 [CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-3752

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in the Linux kernel’s Bluetooth subsystem when a user calls connect to the socket and disconnect simultaneously. A local user can escalate privileges on the system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.91.2

ocfs2-kmp-default: before 4.12.14-122.91.2

gfs2-kmp-default-debuginfo: before 4.12.14-122.91.2

gfs2-kmp-default: before 4.12.14-122.91.2

dlm-kmp-default-debuginfo: before 4.12.14-122.91.2

dlm-kmp-default: before 4.12.14-122.91.2

cluster-md-kmp-default-debuginfo: before 4.12.14-122.91.2

cluster-md-kmp-default: before 4.12.14-122.91.2

kgraft-patch-4_12_14-122_91-default: before 1-8.3.2

kernel-default-kgraft-devel: before 4.12.14-122.91.2

kernel-default-kgraft: before 4.12.14-122.91.2

kernel-default-man: before 4.12.14-122.91.2

kernel-default-devel-debuginfo: before 4.12.14-122.91.2

kernel-source: before 4.12.14-122.91.2

kernel-macros: before 4.12.14-122.91.2

kernel-devel: before 4.12.14-122.91.2

kernel-syms: before 4.12.14-122.91.2

kernel-default-devel: before 4.12.14-122.91.2

kernel-default-base-debuginfo: before 4.12.14-122.91.2

kernel-default-base: before 4.12.14-122.91.2

kernel-default: before 4.12.14-122.91.2

kernel-docs: before 4.12.14-122.91.2

kernel-obs-build-debugsource: before 4.12.14-122.91.2

kernel-obs-build: before 4.12.14-122.91.2

kernel-default-extra-debuginfo: before 4.12.14-122.91.2

kernel-default-extra: before 4.12.14-122.91.2

kernel-default-debugsource: before 4.12.14-122.91.2

kernel-default-debuginfo: before 4.12.14-122.91.2

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_high_availability:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:ocfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:ocfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dlm-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dlm-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cluster-md-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cluster-md-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kgraft-patch-4_12_14-122_91-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-kgraft-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-kgraft:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-man:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-source:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-macros:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-syms:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-base-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-base:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-docs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-obs-build-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-obs-build:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-extra:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20213386-1/

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

4) Memory leak

EUVDB-ID: #VU63817

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-3764

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to memory leak error in the ccp_run_aes_gcm_cmd() function in Linux kernel. A local user can trigger a memory leak error and perform a denial of service (DoS) attack.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.91.2

ocfs2-kmp-default: before 4.12.14-122.91.2

gfs2-kmp-default-debuginfo: before 4.12.14-122.91.2

gfs2-kmp-default: before 4.12.14-122.91.2

dlm-kmp-default-debuginfo: before 4.12.14-122.91.2

dlm-kmp-default: before 4.12.14-122.91.2

cluster-md-kmp-default-debuginfo: before 4.12.14-122.91.2

cluster-md-kmp-default: before 4.12.14-122.91.2

kgraft-patch-4_12_14-122_91-default: before 1-8.3.2

kernel-default-kgraft-devel: before 4.12.14-122.91.2

kernel-default-kgraft: before 4.12.14-122.91.2

kernel-default-man: before 4.12.14-122.91.2

kernel-default-devel-debuginfo: before 4.12.14-122.91.2

kernel-source: before 4.12.14-122.91.2

kernel-macros: before 4.12.14-122.91.2

kernel-devel: before 4.12.14-122.91.2

kernel-syms: before 4.12.14-122.91.2

kernel-default-devel: before 4.12.14-122.91.2

kernel-default-base-debuginfo: before 4.12.14-122.91.2

kernel-default-base: before 4.12.14-122.91.2

kernel-default: before 4.12.14-122.91.2

kernel-docs: before 4.12.14-122.91.2

kernel-obs-build-debugsource: before 4.12.14-122.91.2

kernel-obs-build: before 4.12.14-122.91.2

kernel-default-extra-debuginfo: before 4.12.14-122.91.2

kernel-default-extra: before 4.12.14-122.91.2

kernel-default-debugsource: before 4.12.14-122.91.2

kernel-default-debuginfo: before 4.12.14-122.91.2

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_high_availability:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:ocfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:ocfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dlm-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dlm-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cluster-md-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cluster-md-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kgraft-patch-4_12_14-122_91-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-kgraft-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-kgraft:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-man:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-source:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-macros:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-syms:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-base-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-base:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-docs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-obs-build-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-obs-build:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-extra:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20213386-1/

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.

5) Race condition

EUVDB-ID: #VU63667

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-2021-40490

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a race condition in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation

Update the affected package the Linux Kernel to the latest version.

Vulnerable software versions

SUSE Linux Enterprise High Availability: 12-SP5

SUSE Linux Enterprise Live Patching: 12-SP5

SUSE Linux Enterprise Workstation Extension: 12-SP5

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

ocfs2-kmp-default-debuginfo: before 4.12.14-122.91.2

ocfs2-kmp-default: before 4.12.14-122.91.2

gfs2-kmp-default-debuginfo: before 4.12.14-122.91.2

gfs2-kmp-default: before 4.12.14-122.91.2

dlm-kmp-default-debuginfo: before 4.12.14-122.91.2

dlm-kmp-default: before 4.12.14-122.91.2

cluster-md-kmp-default-debuginfo: before 4.12.14-122.91.2

cluster-md-kmp-default: before 4.12.14-122.91.2

kgraft-patch-4_12_14-122_91-default: before 1-8.3.2

kernel-default-kgraft-devel: before 4.12.14-122.91.2

kernel-default-kgraft: before 4.12.14-122.91.2

kernel-default-man: before 4.12.14-122.91.2

kernel-default-devel-debuginfo: before 4.12.14-122.91.2

kernel-source: before 4.12.14-122.91.2

kernel-macros: before 4.12.14-122.91.2

kernel-devel: before 4.12.14-122.91.2

kernel-syms: before 4.12.14-122.91.2

kernel-default-devel: before 4.12.14-122.91.2

kernel-default-base-debuginfo: before 4.12.14-122.91.2

kernel-default-base: before 4.12.14-122.91.2

kernel-default: before 4.12.14-122.91.2

kernel-docs: before 4.12.14-122.91.2

kernel-obs-build-debugsource: before 4.12.14-122.91.2

kernel-obs-build: before 4.12.14-122.91.2

kernel-default-extra-debuginfo: before 4.12.14-122.91.2

kernel-default-extra: before 4.12.14-122.91.2

kernel-default-debugsource: before 4.12.14-122.91.2

kernel-default-debuginfo: before 4.12.14-122.91.2

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_high_availability:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_live_patching:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP5:*:*:*:*:*:*:*
• cpe:2.3:a:suse:ocfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:ocfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gfs2-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:gfs2-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dlm-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dlm-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cluster-md-kmp-default-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:cluster-md-kmp-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kgraft-patch-4_12_14-122_91-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-kgraft-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-kgraft:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-man:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-source:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-macros:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-syms:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-base-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-base:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-docs:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-obs-build-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-obs-build:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-extra-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-extra:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:kernel-default-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20213386-1/

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.