CVE-2008-5162

Summary

CVE	CVE-2008-5162
State	PUBLISHED
Assigner	freebsd
Source Priority	CVE Program / NVD first with legacy fallback
Published	2008-11-26 23:30:00 UTC
Updated	2026-04-23 00:35:47 UTC
Description	The arc4random function in the kernel in FreeBSD 6.3 through 7.1 does not have a proper entropy source for a short time period immediately after boot, which makes it easier for attackers to predict the function's return values and conduct certain attacks against the GEOM framework and various network protocols, related to the Yarrow random number generator.

Primary CVSS: v3.1 7 HIGH from [email protected]

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-330 | n/a

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	7	HIGH	`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`
2.0	[email protected]	Primary	6.9		`AV:L/AC:M/Au:N/C:C/I:C/A:C`

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Access Vector

Local

Access Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

AV:L/AC:M/Au:N/C:C/I:C/A:C

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Freebsd	Freebsd	All	All	All	All
Operating System	Freebsd	Freebsd	6.3	-	All	All
Operating System	Freebsd	Freebsd	6.3	p1	All	All
Operating System	Freebsd	Freebsd	6.3	p2	All	All
Operating System	Freebsd	Freebsd	6.3	p3	All	All
Operating System	Freebsd	Freebsd	6.3	p4	All	All
Operating System	Freebsd	Freebsd	6.3	p5	All	All
Operating System	Freebsd	Freebsd	7.0	-	All	All
Operating System	Freebsd	Freebsd	7.0	p1	All	All
Operating System	Freebsd	Freebsd	7.0	p3	All	All
Operating System	Freebsd	Freebsd	7.0	p4	All	All
Operating System	Freebsd	Freebsd	7.0	p5	All	All
Operating System	Freebsd	Freebsd	7.1	-	All	All
Operating System	Freebsd	Freebsd	7.1	p1	All	All
Operating System	Freebsd	Freebsd	7.1	p10	All	All
Operating System	Freebsd	Freebsd	7.1	p12	All	All
Operating System	Freebsd	Freebsd	7.1	p13	All	All
Operating System	Freebsd	Freebsd	7.1	p14	All	All
Operating System	Freebsd	Freebsd	7.1	p15	All	All
Operating System	Freebsd	Freebsd	7.1	p16	All	All
Operating System	Freebsd	Freebsd	7.1	p2	All	All
Operating System	Freebsd	Freebsd	7.1	p3	All	All
Operating System	Freebsd	Freebsd	7.1	p4	All	All
Operating System	Freebsd	Freebsd	7.1	p5	All	All
Operating System	Freebsd	Freebsd	7.1	p6	All	All
Operating System	Freebsd	Freebsd	7.1	p7	All	All
Operating System	Freebsd	Freebsd	7.1	p8	All	All
Operating System	Freebsd	Freebsd	7.1	p9	All	All
Operating System	Freebsd	Freebsd	7.1	rc1	All	All
Operating System	Freebsd	Freebsd	7.1	rc2	All	All

Source	Vendor	Product	Version	Platforms
CNA	Na	N/a	affected n/a	Not specified

Reference	Source	Link	Tags
FreeBSD 'arc4random (9)' Pseudo-Random Number Generator Insufficient Entropy Weakness	af854a3a-2127-422b-91ae-364da2661108	www.securityfocus.com	Broken Link, Third Party Advisory, VDB Entry
osvdb.org/50137	af854a3a-2127-422b-91ae-364da2661108	osvdb.org	Broken Link
FreeBSD "arc4random()" Insufficient Entropy Sources Security Issue - Secunia.com	af854a3a-2127-422b-91ae-364da2661108	secunia.com	Broken Link
security.freebsd.org/advisories/FreeBSD-SA-08:11.arc4random.asc	af854a3a-2127-422b-91ae-364da2661108	security.freebsd.org	Vendor Advisory
SecurityTracker.com Archives - FreeBSD arc4random(9) Generates Predictable Sequences	af854a3a-2127-422b-91ae-364da2661108	securitytracker.com	Broken Link, Third Party Advisory, VDB Entry
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

There are currently no legacy QID mappings associated with this CVE.