CVE-2013-5666

Severity: medium (CVSS 4.7 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-09-23 · updated 2026-06-16
Weakness: CWE-200

Description

The sendfile system-call implementation in sys/kern/uipc_syscalls.c in the kernel in FreeBSD 9.2-RC1 and 9.2-RC2 does not properly pad transmissions, which allows local users to obtain sensitive information (kernel memory) via a length greater than the length of the file.

Affected products

FreeBSD: 9.2-rc1, 9.2-rc2

References

http://osvdb.org/97142
http://svnweb.freebsd.org/base?view=revision&revision=255442
http://www.freebsd.org/security/advisories/FreeBSD-SA-13%3a11.sendfile.asc
http://www.securitytracker.com/id/1029013
http://osvdb.org/97142
http://svnweb.freebsd.org/base?view=revision&revision=255442
http://www.freebsd.org/security/advisories/FreeBSD-SA-13%3a11.sendfile.asc
http://www.securitytracker.com/id/1029013

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