openEuler 20.03 LTS SP3 update for edk2
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-4304 |
| CWE-ID | CWE-208 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
openEuler Operating systems & Components / Operating system 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 python3-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-devel 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 one medium risk vulnerability.
1) Information Exposure Through Timing Discrepancy
EUVDB-ID: #VU71993
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-4304
CWE-ID:
CWE-208 - Information Exposure Through Timing Discrepancy
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to obtain sensitive information.
The vulnerability exists due to a timing based side channel exists in the OpenSSL RSA Decryption implementation. A remote attacker can perform a Bleichenbacher style attack and decrypt data sent over the network.
To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP3
edk2-ovmf: before 202002-16
edk2-help: before 202002-16
edk2-aarch64: before 202002-16
python3-edk2-devel: before 202002-16
edk2-debugsource: before 202002-16
edk2-debuginfo: before 202002-16
edk2-devel: before 202002-16
edk2: before 202002-16
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
- 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:python3-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-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:edk2:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1429
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.
