Vulnerability in FreeBSD
CVE-2008-5162
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (22.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.3% 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 6.3, 7.0, 7.1
Weakness classification (CWE)
References
- secunia.com/advisories/32871 (Broken Link, third-party-advisory)
- security.freebsd.org/advisories/FreeBSD-SA-08:11.arc4random.asc (vendor-advisory, Vendor Advisory)
- securitytracker.com/id (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- osvdb.org/50137 (vdb-entry, Broken Link)
- www.securityfocus.com/bid/32447 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
Frequently asked questions
- What is CVE-2008-5162?
- CVE-2008-5162 is a high-severity vulnerability in FreeBSD, classified under Use of Insufficiently Random Values. CVSS score: 7.0/10. Published 2008-11-26.
- How severe is CVE-2008-5162?
- High severity. CVSS v3 base score is 7.0 out of 10.