The random number feature in Linux kernel 2.6 before 2.6.20.13, and 2.6.21.x before 2.6.21.4, (1) does not properly seed pools when there is no entropy, or (2) uses an incorrect cast when extracting entropy, which might cause the random number generator to provide the same values after reboots on systems without an entropy source.
References
Link Providers
https://www.spirityenterprise.com/pentest spirity
https://www.spirityenterprise.com/managed-detection-response spirity
http://marc.info/?l=linux-kernel&m=118128610219959&w=2 cve-icon cve-icon
http://marc.info/?l=linux-kernel&m=118128622431272&w=2 cve-icon cve-icon
http://osvdb.org/37114 cve-icon cve-icon
http://secunia.com/advisories/25596 cve-icon cve-icon
http://secunia.com/advisories/25700 cve-icon cve-icon
http://secunia.com/advisories/25961 cve-icon cve-icon
http://secunia.com/advisories/26133 cve-icon cve-icon
http://secunia.com/advisories/26139 cve-icon cve-icon
http://secunia.com/advisories/26450 cve-icon cve-icon
http://secunia.com/advisories/26620 cve-icon cve-icon
http://secunia.com/advisories/26664 cve-icon cve-icon
http://www.debian.org/security/2007/dsa-1356 cve-icon cve-icon
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.21.4 cve-icon cve-icon
http://www.mandriva.com/security/advisories?name=MDKSA-2007:171 cve-icon cve-icon
http://www.mandriva.com/security/advisories?name=MDKSA-2007:196 cve-icon cve-icon
http://www.mandriva.com/security/advisories?name=MDKSA-2007:216 cve-icon cve-icon
http://www.novell.com/linux/security/advisories/2007_43_kernel.html cve-icon cve-icon
http://www.novell.com/linux/security/advisories/2007_51_kernel.html cve-icon cve-icon
http://www.securityfocus.com/bid/24390 cve-icon cve-icon
http://www.securitytracker.com/id?1018248 cve-icon cve-icon
http://www.ubuntu.com/usn/usn-470-1 cve-icon cve-icon
http://www.ubuntu.com/usn/usn-486-1 cve-icon cve-icon
http://www.ubuntu.com/usn/usn-489-1 cve-icon cve-icon
http://www.vupen.com/english/advisories/2007/2105 cve-icon cve-icon
https://exchange.xforce.ibmcloud.com/vulnerabilities/34781 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2007-2453 cve-icon
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9960 cve-icon cve-icon
https://rhn.redhat.com/errata/RHSA-2007-0376.html cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2007-2453 cve-icon
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T13:42:32.344Z

Reserved: 2007-05-02T00:00:00.000Z

Link: CVE-2007-2453

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2007-06-11T23:30:00.000

Modified: 2026-04-23T00:35:47.467

Link: CVE-2007-2453

cve-icon Redhat

Severity : Important

Publid Date: 2007-05-30T00:00:00Z

Links: CVE-2007-2453 - Bugzilla