Vulnerability Information
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Vulnerability Title
N/A
Vulnerability 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 Information
N/A
Vulnerability Type
N/A
Vulnerability Title
FreeBSD arc4random (9)伪随机数生成器不充分熵漏洞
Vulnerability Description
FreeBSD就是一种运行在Intel平台上、可以自由使用的开放源码Unix类系统。 FreeBSD内核中广泛使用arc4random(9)随机数生成器，一些应用依赖于该随机数生成器的加密强度。arc4random(9)定期用来自FreeBSD内核的Yarrow随机数生成器的熵重新提供种子，Yarrow随机数生成器从包括硬件中断等各种来源收集熵。在引导阶段，从用户域向Yarrow随机数生成器提供了额外的熵，以确保加密中有足够的熵。 在初始化arc4random(9)随机数生成器时，可能没有足够多的熵来满足
CVSS Information
N/A
Vulnerability Type
N/A