CVE-2008-1147

A certain pseudo-random number generator (PRNG) algorithm that uses XOR and 2-bit random hops (aka "Algorithm X2"), as used in OpenBSD 2.6 through 3.4, Mac OS…

published March 4, 2008

CVSS
—
EPSS
2%
Percentile
77.8
In the wild
Unconfirmed
What it is

A certain pseudo-random number generator (PRNG) algorithm that uses XOR and 2-bit random hops (aka "Algorithm X2"), as used in OpenBSD 2.6 through 3.4, Mac OS X 10 through 10.5.1, FreeBSD 4.4 through 7.0, and DragonFlyBSD 1.0 through 1.10.1, allows remote attackers to guess sensitive values such as IP fragmentation IDs by observing a sequence of previously generated values. NOTE: this issue can be leveraged for attacks such as injection into TCP packets and OS fingerprinting.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01772 · 77.8th percentile
Published
2008-03-04T23:00Z
EPSS history
Timeline
  • 04 MAR 23:00Z
    A certain pseudo-random number generator (PRNG) algorithm that uses XOR and 2-bit random hops (aka "Algorithm X2"), as used in OpenBSD 2.6 through 3.4, Mac OS…
    cvelistv5