An update for edk2 is now available for openEuler-24.03-LTS-SP2 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2025-1802 Final 1.0 1.0 2025-07-11 Initial 2025-07-11 2025-07-11 openEuler SA Tool V1.0 2025-07-11 edk2 security update An update for edk2 is now available for openEuler-24.03-LTS-SP2 EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. 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) An update for edk2 is now available for openEuler-24.03-LTS-SP2. openEuler Security has rated this update as having a security impact of medium. 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. Medium edk2 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1802 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2023-5678 https://nvd.nist.gov/vuln/detail/CVE-2023-5678 openEuler-24.03-LTS-SP2 edk2-202308-25.oe2403sp2.src.rpm edk2-aarch64-202308-25.oe2403sp2.noarch.rpm edk2-help-202308-25.oe2403sp2.noarch.rpm edk2-ovmf-202308-25.oe2403sp2.noarch.rpm python3-edk2-devel-202308-25.oe2403sp2.noarch.rpm edk2-debuginfo-202308-25.oe2403sp2.aarch64.rpm edk2-debugsource-202308-25.oe2403sp2.aarch64.rpm edk2-devel-202308-25.oe2403sp2.aarch64.rpm edk2-debuginfo-202308-25.oe2403sp2.x86_64.rpm edk2-debugsource-202308-25.oe2403sp2.x86_64.rpm edk2-devel-202308-25.oe2403sp2.x86_64.rpm 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. 2025-07-11 CVE-2023-5678 openEuler-24.03-LTS-SP2 Medium 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L edk2 security update 2025-07-11 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1802