{"schema_version":"1.7.2","id":"OESA-2026-2103","modified":"2026-04-25T05:50:19Z","published":"2026-04-25T05:50:19Z","upstream":["CVE-2026-40706"],"summary":"ntfs-3g security update","details":"NTFS-3G is a stable, open source, GPL licensed, POSIX, read/write NTFS driver for Linux and many other operating systems. It provides safe handling of the Windows XP, Windows Server 2003, Windows 2000, Windows Vista, Windows Server 2008 and Windows 7 NTFS file systems.\r\n\r\nSecurity Fix(es):\n\nA heap buffer overflow exists in ntfs_build_permissions_posix() (acls.c:4011-4027) that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered on the READ path (stat, readdir, open) when processing a security descriptor with multiple ACCESS_DENIED ACEs containing WRITE_OWNER from distinct group SIDs.\n\nThe overflow size is attacker-controlled (8 to 14,000+ bytes) and writes partially attacker-controlled data (POSIX_ACE entries with attacker-derived GID values) past the heap allocation. This corrupts adjacent glibc heap chunk metadata, as confirmed by a crash in _int_free() with "free(): corrupted unsorted chunks".(CVE-2026-40706)","affected":[{"package":{"ecosystem":"openEuler:22.03-LTS-SP4","name":"ntfs-3g","purl":"pkg:rpm/openEuler/ntfs-3g&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2022.5.17-4.oe2203sp4"}]}],"ecosystem_specific":{"aarch64":["ntfs-3g-2022.5.17-4.oe2203sp4.aarch64.rpm","ntfs-3g-debuginfo-2022.5.17-4.oe2203sp4.aarch64.rpm","ntfs-3g-debugsource-2022.5.17-4.oe2203sp4.aarch64.rpm","ntfs-3g-devel-2022.5.17-4.oe2203sp4.aarch64.rpm","ntfs-3g-help-2022.5.17-4.oe2203sp4.aarch64.rpm"],"src":["ntfs-3g-2022.5.17-4.oe2203sp4.src.rpm"],"x86_64":["ntfs-3g-2022.5.17-4.oe2203sp4.x86_64.rpm","ntfs-3g-debuginfo-2022.5.17-4.oe2203sp4.x86_64.rpm","ntfs-3g-debugsource-2022.5.17-4.oe2203sp4.x86_64.rpm","ntfs-3g-devel-2022.5.17-4.oe2203sp4.x86_64.rpm","ntfs-3g-help-2022.5.17-4.oe2203sp4.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2103"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40706"}],"database_specific":{"severity":"High"}}