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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T08:08:57.697Z

Reserved: 2008-03-04T00:00:00

Link: CVE-2008-1147

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2008-03-04T23:44:00.000

Modified: 2025-04-09T00:30:58.490

Link: CVE-2008-1147

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.