CVE-2023-5368

msdosfs data disclosure

MEDIUM
6.5
CVSS Score
Published: October 4, 2023 at 03:38 AM UTC
Updated: June 17, 2026 at 06:48 AM UTC
1 product affected across 1 vendorFreeBSD

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.7%

Description

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 12.412.4-RELEASE ≤ v < p613.0 ≤ v < 13.213.2-RELEASE ≤ v < p412.412.4 p112.4 p212.4 p312.4 p412.4 p512.4-RELEASE13.213.2 p113.2 p213.2 p313.2-RELEASE
Affected range stops below 12.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.2, so it looks safe — our inference, not a vendor statement
Affected range stops below p4, so it looks safe — our inference, not a vendor statement
Affected range stops below p6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1188

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