openEuler 22.03 LTS SP1 update for edk2
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-3712 CVE-2022-0778 |
| CWE-ID | CWE-125 CWE-835 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #2 is available. |
| Vulnerable software |
openEuler Operating systems & Components / Operating system python3-edk2-devel Operating systems & Components / Operating system package or component edk2-ovmf Operating systems & Components / Operating system package or component edk2-help Operating systems & Components / Operating system package or component edk2-aarch64 Operating systems & Components / Operating system package or component edk2-devel Operating systems & Components / Operating system package or component edk2-debugsource Operating systems & Components / Operating system package or component edk2-debuginfo Operating systems & Components / Operating system package or component edk2 Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Out-of-bounds read
EUVDB-ID: #VU56064
Risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-3712
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when processing ASN.1 strings related to a confusion with NULL termination of strings in array. A remote attacker can pass specially crafted data to the application to trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 22.03 LTS SP1
python3-edk2-devel: before 202011-20
edk2-ovmf: before 202011-20
edk2-help: before 202011-20
edk2-aarch64: before 202011-20
edk2-devel: before 202011-20
edk2-debugsource: before 202011-20
edk2-debuginfo: before 202011-20
edk2: before 202011-20
CPE2.3- cpe:2.3:o:openeuler:openeuler:22.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:o:openeuler:python3-edk2-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-ovmf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-aarch64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2:*:*:*:*:*:openeuler:*:*
http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-2095
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.
2) Infinite loop
EUVDB-ID: #VU61391
Risk: Medium
CVSSv4.0: 7.7 [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:P/U:Green]
CVE-ID: CVE-2022-0778
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within the BN_mod_sqrt() function when processing an ASN.1 certificate that contains elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. A remote attacker can supply a specially crafted certificate to the TLS server or client, consume all available system resources and cause denial of service conditions.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 22.03 LTS SP1
python3-edk2-devel: before 202011-20
edk2-ovmf: before 202011-20
edk2-help: before 202011-20
edk2-aarch64: before 202011-20
edk2-devel: before 202011-20
edk2-debugsource: before 202011-20
edk2-debuginfo: before 202011-20
edk2: before 202011-20
CPE2.3- cpe:2.3:o:openeuler:openeuler:22.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:o:openeuler:python3-edk2-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-ovmf:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-aarch64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2:*:*:*:*:*:openeuler:*:*
http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-2095
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. However, proof of concept for this vulnerability is available.
