VDB
CVE-2021-33285
CVE-2021-33285
PUBLISHED
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.
EPSS 0.04% · 11.4th percentile
Risk Scores
EPSS Score
0.04%
11.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:14.04:LTS | ntfs-3g | 0, *, 1:2013.1.13AR.1-2ubuntu2 |
| Ubuntu:20.04:LTS | ntfs-3g | 1:2017.3.23AR.3-3ubuntu1, 0 |
| Ubuntu:22.04:LTS | ntfs-3g | 0 |
| Ubuntu:18.04:LTS | ntfs-3g | 1:2016.2.22AR.2-2, 1:2017.3.23-2ubuntu0.18.04.1, * |
| Ubuntu:Pro:16.04:LTS | ntfs-3g | *, 1:2015.3.14AR.1-1ubuntu0.2, * |
Timeline
- Sep 7, 2021 CVE Published
- Sep 8, 2021 EPSS Score
- Nov 5, 2021 EPSS Score
- Jan 1, 2022 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Apr 27, 2022 EPSS Score
- Jun 24, 2022 EPSS Score
- Aug 21, 2022 EPSS Score
- Oct 18, 2022 EPSS Score
- Dec 15, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-33285 third-party-advisory
- https://www.openwall.com/lists/oss-security/2021/08/30/1 third-party-advisory
- https://ubuntu.com/security/notices/USN-5060-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-5060-2 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-33285 third-party-advisory