CVE-2021-33285
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- CVE-2021-33285
CVE Details
| Release Date: | 2021-09-07 |
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, the parsing of the records proceeds into the wild.
See more information about CVE-2021-33285 from MITRE CVE dictionary and NIST NVD
CVSS v3.0 metrics
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
| Base Score: | 7.8 | Base Metrics: | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Access Vector: | Local network | Attack Complexity: | Low |
| Privileges Required: | Low | User Interaction: | None |
| Scope: | Unchanged | Confidentiality Impact: | High |
| Integrity Impact: | High | Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (hivex) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (libguestfs) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (libguestfs-winsupport) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (libiscsi) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (libnbd) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (libtpms) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (libvirt) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (libvirt-dbus) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (libvirt-python) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (nbdkit) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (netcf) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (perl-Sys-Virt) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (qemu-kvm) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (seabios) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (sgabios) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (supermin) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (swtpm) | ELSA-2022-1759 | 2022-05-17 |
| Oracle Linux version 8 (virt-v2v) | ELSA-2022-1759 | 2022-05-17 |
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