openEuler 22.03 LTS SP1 update for grub2
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-46848 |
| CWE-ID | CWE-193 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
openEuler Operating systems & Components / Operating system grub2-efi-x64-cdboot Operating systems & Components / Operating system package or component grub2-efi-ia32 Operating systems & Components / Operating system package or component grub2-pc Operating systems & Components / Operating system package or component grub2-efi-ia32-cdboot Operating systems & Components / Operating system package or component grub2-tools-efi Operating systems & Components / Operating system package or component grub2-efi-x64 Operating systems & Components / Operating system package or component grub2-efi-x64-modules Operating systems & Components / Operating system package or component grub2-efi-aa64-modules Operating systems & Components / Operating system package or component grub2-efi-ia32-modules Operating systems & Components / Operating system package or component grub2-pc-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-tools-minimal Operating systems & Components / Operating system package or component grub2-debuginfo Operating systems & Components / Operating system package or component grub2-efi-aa64 Operating systems & Components / Operating system package or component grub2-tools-extra Operating systems & Components / Operating system package or component grub2-efi-aa64-cdboot Operating systems & Components / Operating system package or component grub2-tools Operating systems & Components / Operating system package or component grub2-debugsource 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 medium risk vulnerability.
1) Off-by-one
EUVDB-ID: #VU68858
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-46848
CWE-ID:
CWE-193 - Off-by-one Error
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an ETYPE_OK off-by-one error in asn1_encode_simple_der in Libtasn1. A remote attacker can pass specially crafted data to the application, trigger an off-by-one error and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 22.03 LTS SP1
grub2-efi-x64-cdboot: before 2.06-42
grub2-efi-ia32: before 2.06-42
grub2-pc: before 2.06-42
grub2-efi-ia32-cdboot: before 2.06-42
grub2-tools-efi: before 2.06-42
grub2-efi-x64: before 2.06-42
grub2-efi-x64-modules: before 2.06-42
grub2-efi-aa64-modules: before 2.06-42
grub2-efi-ia32-modules: before 2.06-42
grub2-pc-modules: before 2.06-42
grub2-common: before 2.06-42
grub2-help: before 2.06-42
grub2-tools-minimal: before 2.06-42
grub2-debuginfo: before 2.06-42
grub2-efi-aa64: before 2.06-42
grub2-tools-extra: before 2.06-42
grub2-efi-aa64-cdboot: before 2.06-42
grub2-tools: before 2.06-42
grub2-debugsource: before 2.06-42
grub2: before 2.06-42
CPE2.3- cpe:2.3:o:openeuler:openeuler:22.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:a:openeuler:grub2-efi-x64-cdboot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-ia32:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-pc:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-ia32-cdboot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-tools-efi:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-x64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-x64-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-aa64-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-ia32-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-pc-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-common:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-tools-minimal:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-aa64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-tools-extra:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-efi-aa64-cdboot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-tools:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:grub2:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-1699
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.
