openEuler update for edk2

Published: 2024-10-25

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-45236 CVE-2023-45237
CWE-ID	CWE-338
Exploitation vector	Network
Public exploit	N/A
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) Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

EUVDB-ID: #VU85527

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-45236

CWE-ID: CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a predictable TCP Initial Sequence Number. A remote attacker on the local network can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4 - 24.03 LTS

python3-edk2-devel: before 202011-22

edk2-ovmf: before 202011-22

edk2-help: before 202011-22

edk2-aarch64: before 202011-22

edk2-devel: before 202011-22

edk2-debugsource: before 202011-22

edk2-debuginfo: before 202011-22

edk2: before 202011-22

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2024-2301

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

EUVDB-ID: #VU85528

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-45237