CVE-2021-33285 — Out-of-bounds Write in Ntfs-3g
Severity
7.8HIGHNVD
EPSS
0.0%
top 89.11%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 7
Latest updateSep 14
Description
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by mounting a crafted ntfs partition. The root cause is a missing consistency check after reading an MFT record : the "bytes_in_use" field should be less than the "bytes_allocated" field. When it is not,…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages2 packages
Also affects: Debian Linux 10.0, 11.0, 9.0, Fedora 33, 34, 35, Enterprise Linux 7.0, 8.0
🔴Vulnerability Details
2📋Vendor Advisories
3Microsoft▶
In NTFS-3G versions < 2021.8.22 when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value a heap buffer overflow can occur allowing for memory disclosure or denial o↗2021-09-14
Red Hat▶
ntfs-3g: Out-of-bounds heap buffer access in ntfs_get_attribute_value() due to incorrect check of bytes_in_use value in MFT records↗2021-08-30
Debian▶
CVE-2021-33285: ntfs-3g - In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supp...↗2021