An update for edk2 is now available for HCE 2.0 Security Advisory hws_security@huawei.com Huawei Cloud HCE2-SA-2025-0300 Final 1.0 1.0 2025-12-09T06:53:37:00Z current version 2025-12-09T06:53:37:00Z 2025-12-09T06:53:37:00Z HCE SA Engine 1.0.0 An update for edk2 is now available for HCE 2.0 HCE Security has rated this update as having a security impact of Important.A Common Vunlnerability Scoring System(CVSS)base score, which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Security Fix(es): Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q. An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line application when using the "-pubcheck" option, as well as the OpenSSL genpkey command line application. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-5678) EDK2 contains a vulnerability in BIOS where an attacker may cause “Protection Mechanism Failure” by local access. Successful exploitation of this vulnerability will lead to arbitrary code execution and impact Confidentiality, Integrity, and Availability. (CVE-2025-3770) Issue summary: An application trying to decrypt CMS messages encrypted using password based encryption can trigger an out-of-bounds read and write. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service for an application. The out-of-bounds write can cause a memory corruption which can have various consequences including a Denial of Service or Execution of attacker-supplied code. Although the consequences of a successful exploit of this vulnerability could be severe, the probability that the attacker would be able to perform it is low. Besides, password based (PWRI) encryption support in CMS messages is very rarely used. For that reason the issue was assessed as Moderate severity according to our Security Policy. The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue, as the CMS implementation is outside the OpenSSL FIPS module boundary. (CVE-2025-9230) EDK2 contains a vulnerability in BIOS where a user may cause an Integer Overflow or Wraparound by network means. A successful exploitation of this vulnerability may lead to denial of service. (CVE-2024-38805) This document is provided on an "AS IS" basis and does not implyany kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. 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Huawei Cloud EulerOS 2.0 edk2 This vulnerability can be exploited only when the following conditions are present: None Vulnerability details: For technical details, customers are advised to reference the website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-5678 CVE-2023-5678 HCE 2.0:edk2-202011-25.r4.hce2 For technical details, customers are advised to referencethe website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-5678 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L This vulnerability can be exploited only when the following conditions are present: None Vulnerability details: For technical details, customers are advised to reference the website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-3770 CVE-2025-3770 HCE 2.0:edk2-202011-25.r4.hce2 For technical details, customers are advised to referencethe website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-3770 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H This vulnerability can be exploited only when the following conditions are present: None Vulnerability details: For technical details, customers are advised to reference the website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-9230 CVE-2025-9230 HCE 2.0:edk2-202011-25.r4.hce2 For technical details, customers are advised to referencethe website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-9230 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H This vulnerability can be exploited only when the following conditions are present: None Vulnerability details: For technical details, customers are advised to reference the website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-38805 CVE-2024-38805 HCE 2.0:edk2-202011-25.r4.hce2 For technical details, customers are advised to referencethe website: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-38805 6.3 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H