openEuler update for grub2
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-3981 |
| CWE-ID | CWE-277 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
openEuler Operating systems & Components / Operating system grub2-efi-ia32 Operating systems & Components / Operating system package or component grub2-tools-efi Operating systems & Components / Operating system package or component grub2-efi-ia32-cdboot Operating systems & Components / Operating system package or component grub2-efi-x64-cdboot Operating systems & Components / Operating system package or component grub2-pc Operating systems & Components / Operating system package or component grub2-efi-x64 Operating systems & Components / Operating system package or component grub2-efi-aa64-modules Operating systems & Components / Operating system package or component grub2-pc-modules Operating systems & Components / Operating system package or component grub2-efi-ia32-modules Operating systems & Components / Operating system package or component grub2-common Operating systems & Components / Operating system package or component grub2-help Operating systems & Components / Operating system package or component grub2-efi-x64-modules Operating systems & Components / Operating system package or component grub2-debuginfo Operating systems & Components / Operating system package or component grub2-tools-extra Operating systems & Components / Operating system package or component grub2-tools-minimal Operating systems & Components / Operating system package or component grub2-efi-aa64 Operating systems & Components / Operating system package or component grub2-debugsource Operating systems & Components / Operating system package or component grub2-tools Operating systems & Components / Operating system package or component grub2-efi-aa64-cdboot Operating systems & Components / Operating system package or component grub2 Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Insecure Inherited Permissions
EUVDB-ID: #VU64272
Risk: Low
CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-3981
CWE-ID:
CWE-277 - Insecure inherited permissions
Exploit availability: No
DescriptionThe vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to incorrect default permissions for in grub.cfg file that are set by the application. A local user with access to the system can view contents of files and directories.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 20.03 LTS SP3
grub2-efi-ia32: before 2.04-23
grub2-tools-efi: before 2.04-23
grub2-efi-ia32-cdboot: before 2.04-23
grub2-efi-x64-cdboot: before 2.04-23
grub2-pc: before 2.04-23
grub2-efi-x64: before 2.04-23
grub2-efi-aa64-modules: before 2.04-23
grub2-pc-modules: before 2.04-23
grub2-efi-ia32-modules: before 2.04-23
grub2-common: before 2.04-23
grub2-help: before 2.04-23
grub2-efi-x64-modules: before 2.04-23
grub2-debuginfo: before 2.04-23
grub2-tools-extra: before 2.04-23
grub2-tools-minimal: before 2.04-23
grub2-efi-aa64: before 2.04-23
grub2-debugsource: before 2.04-23
grub2-tools: before 2.04-23
grub2-efi-aa64-cdboot: before 2.04-23
grub2: before 2.04-23
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP2:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
- cpe:2.3:a:openeuler:grub2-efi-ia32:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-tools-efi:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-ia32-cdboot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-x64-cdboot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-pc:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-x64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-aa64-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-pc-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-ia32-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-common:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-x64-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-tools-extra:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-tools-minimal:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-aa64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-tools:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-aa64-cdboot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1597
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.
