Medium severity · published Oct 4, 2023
CVE-2023-5368
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…
6.5
CVSS
0.7%
EPSS
No
On KEV
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
before 12.4; 13.0 before 13.2; 12.4; 12.4; 12.4; 12.4; +6 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-5368
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-5368
dfir.ru
https://dfir.ru/2023/11/01/bringing-unallocated-data-back-the-fat12-16-32-case/
Patch
https://security.FreeBSD.org/advisories/FreeBSD-SA-23:12.msdosfs.asc
security.netapp.com
https://security.netapp.com/advisory/ntap-20231124-0004/
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