Information disclosure in FreeBSD
CVE-2013-5666
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.7 (Medium). Vector: AV:L/AC:M/Au:N/C:C/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.003 (21.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- FreeBSD — versions 9.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.freebsd.org/security/advisories/FreeBSD-SA-13:11.sendfile.asc (vendor-advisory, Vendor Advisory)
- osvdb.org/97142 (vdb-entry)
- www.securitytracker.com/id/1029013 (vdb-entry)
- svnweb.freebsd.org/base
Frequently asked questions
- What is CVE-2013-5666?
- CVE-2013-5666 is a vulnerability in FreeBSD, classified under Information Disclosure. Published 2013-09-23.
- Is CVE-2013-5666 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.