OESA-2026-2104

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-2104
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-2104.json
JSON Data
https://api.test.osv.dev/v1/vulns/OESA-2026-2104
Upstream
Published
2026-04-25T05:50:20Z
Modified
2026-04-25T06:04:47.595709Z
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.

Security Fix(es):

A heap buffer overflow exists in ntfsbuildpermissionsposix() (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 ACCESSDENIED ACEs containing WRITE_OWNER from distinct group SIDs.

The 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 intfree() with "free(): corrupted unsorted chunks".(CVE-2026-40706)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:24.03-LTS / ntfs-3g

Package

Name
ntfs-3g
Purl
pkg:rpm/openEuler/ntfs-3g&distro=openEuler-24.03-LTS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2022.10.3-3.oe2403

Ecosystem specific 

{
    "src": [
        "ntfs-3g-2022.10.3-3.oe2403.src.rpm"
    ],
    "x86_64": [
        "ntfs-3g-2022.10.3-3.oe2403.x86_64.rpm",
        "ntfs-3g-debuginfo-2022.10.3-3.oe2403.x86_64.rpm",
        "ntfs-3g-debugsource-2022.10.3-3.oe2403.x86_64.rpm",
        "ntfs-3g-devel-2022.10.3-3.oe2403.x86_64.rpm",
        "ntfs-3g-help-2022.10.3-3.oe2403.x86_64.rpm"
    ],
    "aarch64": [
        "ntfs-3g-2022.10.3-3.oe2403.aarch64.rpm",
        "ntfs-3g-debuginfo-2022.10.3-3.oe2403.aarch64.rpm",
        "ntfs-3g-debugsource-2022.10.3-3.oe2403.aarch64.rpm",
        "ntfs-3g-devel-2022.10.3-3.oe2403.aarch64.rpm",
        "ntfs-3g-help-2022.10.3-3.oe2403.aarch64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-2104.json"