An update for edk2 is now available for openEuler-24.03-LTS Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2025-1326 Final 1.0 1.0 2025-03-21 Initial 2025-03-21 2025-03-21 openEuler SA Tool V1.0 2025-03-21 edk2 security update An update for edk2 is now available for openEuler-24.03-LTS EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. Security Fix(es): Issue summary: Checking excessively long DSA keys or parameters may be very slow. Impact summary: Applications that use the functions EVP_PKEY_param_check() or EVP_PKEY_public_check() to check a DSA public key or DSA 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. The functions EVP_PKEY_param_check() or EVP_PKEY_public_check() perform various checks on DSA parameters. Some of those computations take a long time if the modulus (`p` parameter) is too large. Trying to use a very large modulus is slow and OpenSSL will not allow using public keys with a modulus which is over 10,000 bits in length for signature verification. However the key and parameter check functions do not limit the modulus size when performing the checks. An application that calls EVP_PKEY_param_check() or EVP_PKEY_public_check() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. These functions are not called by OpenSSL itself on untrusted DSA keys so only applications that directly call these functions may be vulnerable. Also vulnerable are the OpenSSL pkey and pkeyparam command line applications when using the `-check` option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue.(CVE-2024-4603) An update for edk2 is now available for openEuler-24.03-LTS. 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-2025-1326 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2024-4603 https://nvd.nist.gov/vuln/detail/CVE-2024-4603 openEuler-24.03-LTS edk2-202308-21.oe2403.src.rpm edk2-aarch64-202308-21.oe2403.noarch.rpm edk2-help-202308-21.oe2403.noarch.rpm edk2-ovmf-202308-21.oe2403.noarch.rpm python3-edk2-devel-202308-21.oe2403.noarch.rpm edk2-debuginfo-202308-21.oe2403.aarch64.rpm edk2-debugsource-202308-21.oe2403.aarch64.rpm edk2-devel-202308-21.oe2403.aarch64.rpm edk2-debuginfo-202308-21.oe2403.x86_64.rpm edk2-debugsource-202308-21.oe2403.x86_64.rpm edk2-devel-202308-21.oe2403.x86_64.rpm Issue summary: Checking excessively long DSA keys or parameters may be very slow. Impact summary: Applications that use the functions EVP_PKEY_param_check() or EVP_PKEY_public_check() to check a DSA public key or DSA 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. The functions EVP_PKEY_param_check() or EVP_PKEY_public_check() perform various checks on DSA parameters. Some of those computations take a long time if the modulus (`p` parameter) is too large. Trying to use a very large modulus is slow and OpenSSL will not allow using public keys with a modulus which is over 10,000 bits in length for signature verification. However the key and parameter check functions do not limit the modulus size when performing the checks. An application that calls EVP_PKEY_param_check() or EVP_PKEY_public_check() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. These functions are not called by OpenSSL itself on untrusted DSA keys so only applications that directly call these functions may be vulnerable. Also vulnerable are the OpenSSL pkey and pkeyparam command line applications when using the `-check` option. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue. 2025-03-21 CVE-2024-4603 openEuler-24.03-LTS Medium 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L edk2 security update 2025-03-21 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1326