{"id":"OESA-2024-1186","summary":"shim security update","details":"Initial UEFI bootloader that handles chaining to a trusted full \\ bootloader under secure boot environments.\r\n\r\nSecurity Fix(es):\r\n\r\nA security vulnerability has been identified in all supported versions\r\n\r\nof OpenSSL related to the verification of X.509 certificate chains\nthat include policy constraints.  Attackers may be able to exploit this\nvulnerability by creating a malicious certificate chain that triggers\nexponential use of computational resources, leading to a denial-of-service\n(DoS) attack on affected systems.\r\n\r\nPolicy processing is disabled by default but can be enabled by passing\nthe `-policy' argument to the command line utilities or by calling the\n`X509_VERIFY_PARAM_set1_policies()' function.(CVE-2023-0464)","modified":"2026-03-11T06:38:35.979337Z","published":"2024-02-23T11:07:01Z","upstream":["CVE-2023-0464"],"database_specific":{"severity":"High"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1186"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0464"}],"affected":[{"package":{"name":"shim","ecosystem":"openEuler:22.03-LTS","purl":"pkg:rpm/openEuler/shim&distro=openEuler-22.03-LTS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"15.4-13.oe2203"}]}],"ecosystem_specific":{"x86_64":["shim-15.4-13.oe2203.x86_64.rpm"],"src":["shim-15.4-13.oe2203.src.rpm"],"aarch64":["shim-15.4-13.oe2203.aarch64.rpm"],"noarch":["shim-debuginfo-15.4-13.oe2203.noarch.rpm","shim-debugsource-15.4-13.oe2203.noarch.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2024-1186.json"}}],"schema_version":"1.7.5"}