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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (7.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- FreeBSD — versions 13.2, 13.2-RELEASE
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.FreeBSD.org/advisories/FreeBSD-SA-23:13.capsicum.asc (vendor-advisory, Vendor Advisory)
- security.netapp.com/advisory/ntap-20231124-0009/
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.