What is CVE-2023-5369?

CVE-2023-5369 is a high-severity vulnerability in Freebsd, classified under Improper Check for Dropped Privileges. CVSS score: 7.1/10. Published 2023-10-04.

How severe is CVE-2023-5369?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2023-5369 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Freebsd

CVE-2023-5369

Before correction, the copy_file_range system call checked only for the CAP_READ and CAP_WRITE capabilities on the input and output file descriptors, respectively. Using an offset is logically equivalent to seeking, and the system call must additionally require the CAP_SEEK capability. This incorrect privilege check enabled sandboxed processes with only read or write but no seek capability on a file descriptor to read data from or write data to an arbitrary location within the file corresponding to that file descriptor.

EPSS: 0.002 (8.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Freebsd — versions 13.2, 13.2-RELEASE

Weakness classification (CWE)

CWE-273 — Improper Check for Dropped Privileges

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

secteam@freebsd.org (vendor-advisory, Vendor Advisory)
secteam@freebsd.org

Frequently asked questions

What is CVE-2023-5369?: CVE-2023-5369 is a high-severity vulnerability in Freebsd, classified under Improper Check for Dropped Privileges. CVSS score: 7.1/10. Published 2023-10-04.
How severe is CVE-2023-5369?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2023-5369 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.