Vulnerability · Published Oct 4, 2023 · Assigned by freebsd

CVE-2023-5369copy_file_range insufficient capability rights check

High 7.1

In plain English

A high-severity security flaw in FreeBSD from FreeBSD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS NVD)7.1High

Exploit odds (30 days)0.2%top 90.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
FreeBSD	FreeBSD	13.2-RELEASE – before p4

Weakness: CWE-273

In plain English

Official description

Affected products (as reported)

References