CVE-2023-5369

High

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.

SeverityHigh

CVSS7.1

Exploit probability—

Product

Freebsd

PublishedOct 4, 2023

First seenOct 4, 2023

Weakness typeCWE-273CWE-273

How to fix

Vendor advisories

security.freebsd.org/advisories/FreeBSD-SA-23:13.capsicum.asc

Affected products

Product	Affected versions	Fixed in
freebsd freebsd	13.2	—

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