{"id":"OESA-2026-4579","summary":"util-linux security update","details":"The util-linux package contains a random collection of files that implements some low-level basic linux utilities.\r\n\r\nSecurity Fix(es):\n\nutil-linux is a random collection of Linux utilities. Before util-linux 2.41.4, `parse_dos_extended()` in `libblkid/src/partitions/dos.c` computes an extended-partition start sector with 32-bit addition and does not apply the extended-area bounds checks to the first two EBR entries. A local attacker who causes a crafted DOS extended-partition disk image or removable medium to be probed can wrap `cur_start + start` to sector zero and cause libblkid to report a false partition overlapping the MBR. This directly compromises the integrity of the reported partition metadata; disk modification or availability loss requires a separate downstream consumer to act on that metadata. This issue is fixed in 2.41.4.(CVE-2026-53615)","modified":"2026-10-29T09:15:35.049961195Z","published":"2026-10-29T09:03:10Z","upstream":["CVE-2026-53615"],"database_specific":{"severity":"High"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4579"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53615"}],"affected":[{"package":{"name":"util-linux","ecosystem":"openEuler:24.03-LTS-SP4","purl":"pkg:rpm/openEuler/util-linux&distro=openEuler-24.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.39.1-46.oe2403sp4"}]}],"ecosystem_specific":{"aarch64":["libblkid-2.39.1-46.oe2403sp4.aarch64.rpm","libfdisk-2.39.1-46.oe2403sp4.aarch64.rpm","libmount-2.39.1-46.oe2403sp4.aarch64.rpm","libsmartcols-2.39.1-46.oe2403sp4.aarch64.rpm","libuuid-2.39.1-46.oe2403sp4.aarch64.rpm","python3-libmount-2.39.1-46.oe2403sp4.aarch64.rpm","util-linux-2.39.1-46.oe2403sp4.aarch64.rpm","util-linux-debuginfo-2.39.1-46.oe2403sp4.aarch64.rpm","util-linux-debugsource-2.39.1-46.oe2403sp4.aarch64.rpm","util-linux-devel-2.39.1-46.oe2403sp4.aarch64.rpm","util-linux-user-2.39.1-46.oe2403sp4.aarch64.rpm","uuidd-2.39.1-46.oe2403sp4.aarch64.rpm"],"noarch":["util-linux-help-2.39.1-46.oe2403sp4.noarch.rpm"],"src":["util-linux-2.39.1-46.oe2403sp4.src.rpm"],"x86_64":["libblkid-2.39.1-46.oe2403sp4.x86_64.rpm","libfdisk-2.39.1-46.oe2403sp4.x86_64.rpm","libmount-2.39.1-46.oe2403sp4.x86_64.rpm","libsmartcols-2.39.1-46.oe2403sp4.x86_64.rpm","libuuid-2.39.1-46.oe2403sp4.x86_64.rpm","python3-libmount-2.39.1-46.oe2403sp4.x86_64.rpm","util-linux-2.39.1-46.oe2403sp4.x86_64.rpm","util-linux-debuginfo-2.39.1-46.oe2403sp4.x86_64.rpm","util-linux-debugsource-2.39.1-46.oe2403sp4.x86_64.rpm","util-linux-devel-2.39.1-46.oe2403sp4.x86_64.rpm","util-linux-user-2.39.1-46.oe2403sp4.x86_64.rpm","uuidd-2.39.1-46.oe2403sp4.x86_64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-4579.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H"}]}