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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.32% probability · 25th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-330
- Affected
- freebsd/freebsd
- Source
- secteam@freebsd.org
References
- http://osvdb.org/50137Broken Link
- http://secunia.com/advisories/32871Broken Link
- http://security.freebsd.org/advisories/FreeBSD-SA-08:11.arc4random.ascVendor Advisory
- http://securitytracker.com/id?1021276Broken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/32447Broken Link, Third Party Advisory, VDB Entry
- http://osvdb.org/50137Broken Link
- http://secunia.com/advisories/32871Broken Link
- http://security.freebsd.org/advisories/FreeBSD-SA-08:11.arc4random.ascVendor Advisory
- http://securitytracker.com/id?1021276Broken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/32447Broken Link, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.