openEuler 20.03 LTS update for grub2 2.02-75
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-10713 |
| CWE-ID | CWE-787 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
openEuler Operating systems & Components / Operating system grub2-tools-efi Operating systems & Components / Operating system package or component grub2-pc Operating systems & Components / Operating system package or component grub2-efi-x64-cdboot Operating systems & Components / Operating system package or component grub2-efi-x64 Operating systems & Components / Operating system package or component grub2-efi-ia32-cdboot Operating systems & Components / Operating system package or component grub2-efi-ia32 Operating systems & Components / Operating system package or component grub2-pc-modules Operating systems & Components / Operating system package or component grub2-efi-x64-modules Operating systems & Components / Operating system package or component grub2-efi-ia32-modules Operating systems & Components / Operating system package or component grub2-help Operating systems & Components / Operating system package or component grub2-tools Operating systems & Components / Operating system package or component grub2-efi-aa64-modules Operating systems & Components / Operating system package or component grub2-efi-aa64-cdboot 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-debuginfo Operating systems & Components / Operating system package or component grub2-common 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) Out-of-bounds Write
EUVDB-ID: #VU32922
Risk: Low
CVSSv4.0: 5.2 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2020-10713
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: Yes
Description
The vulnerability allows a local attacker to compromise vulnerable system.
The vulnerability exists due to a "BootHole" issue. An attacker with physical access can install persistent and stealthy bootkits or malicious bootloaders, trigger out-of-bounds write and execute arbitrary code on the target system.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS
grub2-tools-efi: before 2.02-76
grub2-pc: before 2.02-76
grub2-efi-x64-cdboot: before 2.02-76
grub2-efi-x64: before 2.02-76
grub2-efi-ia32-cdboot: before 2.02-76
grub2-efi-ia32: before 2.02-76
grub2-pc-modules: before 2.02-76
grub2-efi-x64-modules: before 2.02-76
grub2-efi-ia32-modules: before 2.02-76
grub2-help: before 2.02-76
grub2-tools: before 2.02-76
grub2-efi-aa64-modules: before 2.02-76
grub2-efi-aa64-cdboot: before 2.02-76
grub2-efi-aa64: before 2.02-76
grub2-debugsource: before 2.02-76
grub2-debuginfo: before 2.02-76
grub2-common: before 2.02-76
grub2: before 2.02-76
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS:*:*:*:*:*:*
- cpe:2.3:a:openeuler:grub2-tools-efi:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-pc:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-x64-cdboot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-x64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-ia32-cdboot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-ia32:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-pc-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-x64-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-ia32-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-tools:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-aa64-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-aa64-cdboot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-aa64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-common:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1038
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
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.
