CVE-2023-5368: msdosfs data disclosure
First published: Wed Oct 04 2023(Updated: )
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).
Credit: secteam@freebsd.org secteam@freebsd.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeBSD FreeBSD | <12.4 | |
| FreeBSD FreeBSD | >=13.0<13.2 | |
| FreeBSD FreeBSD | =12.4 | |
| FreeBSD FreeBSD | =12.4-p1 | |
| FreeBSD FreeBSD | =12.4-p2 | |
| FreeBSD FreeBSD | =12.4-p3 | |
| FreeBSD FreeBSD | =12.4-p4 | |
| FreeBSD FreeBSD | =12.4-p5 | |
| FreeBSD FreeBSD | =13.2 | |
| FreeBSD FreeBSD | =13.2-p1 | |
| FreeBSD FreeBSD | =13.2-p2 | |
| FreeBSD FreeBSD | =13.2-p3 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-5368?
CVE-2023-5368 is a vulnerability that affects the msdosfs filesystem in FreeBSD.
What is the severity of CVE-2023-5368?
CVE-2023-5368 has a severity rating of 6.5 (medium).
How does CVE-2023-5368 impact FreeBSD?
CVE-2023-5368 allows a user with write access to files on a msdosfs filesystem to read unallocated data from the underlying disk device.
Which versions of FreeBSD are affected by CVE-2023-5368?
FreeBSD versions 12.4 and 13.0 to 13.2 are affected by CVE-2023-5368.
How can I fix CVE-2023-5368?
To fix CVE-2023-5368, update your FreeBSD system to version 12.4-p6, 13.2-p4, or later.
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- version/freebsd freebsd/13.0
- version/freebsd freebsd/12.4
- version/freebsd freebsd/12.4-p1
- version/freebsd freebsd/12.4-p2
- version/freebsd freebsd/12.4-p3
- version/freebsd freebsd/12.4-p4
- version/freebsd freebsd/12.4-p5
- version/freebsd freebsd/13.2
- version/freebsd freebsd/13.2-p1
- version/freebsd freebsd/13.2-p2
- version/freebsd freebsd/13.2-p3