{"schema_version":"1.7.2","id":"OESA-2026-4450","modified":"2026-10-22T14:35:16Z","published":"2026-10-22T14:35:16Z","upstream":["CVE-2026-6862"],"summary":"efivar security update","details":"Some command line interface of the UEFI variables tools are offered by .\r\n\r\nSecurity Fix(es):\n\nA flaw was found in libefiboot, a component of the efivar project. The device path node parser in libefiboot fails to validate that each node's Length field is at least 4 bytes, which is the minimum size for an EFI (Extensible Firmware Interface) device path node header. A local user could exploit this vulnerability by providing a specially crafted device path node. This can lead to infinite recursion, causing stack exhaustion and a process crash, resulting in a denial of service (DoS).(CVE-2026-6862)","affected":[{"package":{"ecosystem":"openEuler:24.03-LTS-SP3","name":"efivar","purl":"pkg:rpm/openEuler/efivar&distro=openEuler-24.03-LTS-SP3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"38-9.oe2403sp3"}]}],"ecosystem_specific":{"aarch64":["efivar-38-9.oe2403sp3.aarch64.rpm","efivar-debuginfo-38-9.oe2403sp3.aarch64.rpm","efivar-debugsource-38-9.oe2403sp3.aarch64.rpm","efivar-devel-38-9.oe2403sp3.aarch64.rpm","efivar-libs-38-9.oe2403sp3.aarch64.rpm"],"noarch":["efivar-help-38-9.oe2403sp3.noarch.rpm"],"src":["efivar-38-9.oe2403sp3.src.rpm"],"x86_64":["efivar-38-9.oe2403sp3.x86_64.rpm","efivar-debuginfo-38-9.oe2403sp3.x86_64.rpm","efivar-debugsource-38-9.oe2403sp3.x86_64.rpm","efivar-devel-38-9.oe2403sp3.x86_64.rpm","efivar-libs-38-9.oe2403sp3.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4450"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6862"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}],"database_specific":{"severity":"Medium"}}