CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NCVE-2023-5368
Medium (6.5) in freebsd freebsd. EPSS 0.7% chance of exploitation in the next 30 days.
On an msdosfs filesystem, the 'truncate' or 'ftruncate' system calls under certain circumstances populate the additional space in the file with unallocated data from the underlying disk device, rather than zero bytes.
This may permit a user with write access to files on a msdosfs filesystem to read unintended data (e.g. from a previously deleted file).
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
- CWE
- CWE-1188
- Published
- Modified
- Record from
- the NVD, synced
Affected
- freebsd:freebsd
References
- https://dfir.ru/2023/11/01/bringing-unallocated-data-back-the-fat12-16-32-case/
- https://security.FreeBSD.org/advisories/FreeBSD-SA-23:12.msdosfs.asc
- https://security.netapp.com/advisory/ntap-20231124-0004/
- https://dfir.ru/2023/11/01/bringing-unallocated-data-back-the-fat12-16-32-case/
- https://security.FreeBSD.org/advisories/FreeBSD-SA-23:12.msdosfs.asc