CVE-2008-5162 json
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…
published 2008-11-26 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-5140
- cvss
- 7.0
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- freebsd freebsd 7.0
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-330 Use of Insufficiently Random Values
References
-
security.freebsd.org
/advisories/FreeBSD-SA-08:11.arc4random.asc
vendor-advisory
-
secunia.com
/advisories/32871
third-party-advisory, broken-link
-
securitytracker.com
/id?1021276
vdb-entry, broken-link, third-party-advisory
-
osvdb.org
/50137
vdb-entry, broken-link
-
securityfocus.com
/bid/32447
vdb-entry, broken-link, third-party-advisory
Sources
- CVE List CVE-2008-5162
- NVD CVE-2008-5162
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.