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Vulnerability record · CVE-2005-0109 · published 5 March 2005

CVE-2005-0109: Freebsd vulnerability

Freebsd · Freebsd

Hyper-Threading technology, as used in FreeBSD and other operating systems that are run on Intel Pentium and other processors, allows local users to use a malicious thread to create covert channels, monitor the execution of other threads, and obtain sensitive information such as cryptographic keys, via a timing attack on memory cache misses.

5.6 CVSS 3.0 Medium EPSS 0.51% · top 58.9%
5.6CVSS 3.0 base score, v2 4.7
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
36References
16 Jun 2026Last modified by NVD

Description

Hyper-Threading technology, as used in FreeBSD and other operating systems that are run on Intel Pentium and other processors, allows local users to use a malicious thread to create covert channels, monitor the execution of other threads, and obtain sensitive information such as cryptographic keys, via a timing attack on memory cache misses.

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.24/SCOSA-2005.24.txt Third Party Advisory
http://marc.info/?l=freebsd-hackers&m=110994026421858&w=2 Mailing List
http://marc.info/?l=freebsd-security&m=110994370429609&w=2 Mailing List
http://marc.info/?l=openbsd-misc&m=110995101417256&w=2 Mailing List
http://secunia.com/advisories/15348 Permissions Required
http://secunia.com/advisories/18165 Permissions Required
http://securitytracker.com/id?1013967 PatchThird Party AdvisoryVDB EntryVendor Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101739-1 Vendor Advisory
http://www-1.ibm.com/support/docview.wss?uid=isg1SSRVHMCHMC_C081516_754 Broken Link
http://www.daemonology.net/hyperthreading-considered-harmful/ Third Party Advisory
http://www.daemonology.net/papers/htt.pdf Third Party Advisory
http://www.kb.cert.org/vuls/id/911878 Third Party AdvisoryUS Government Resource
http://www.redhat.com/support/errata/RHSA-2005-476.html Not Applicable
http://www.redhat.com/support/errata/RHSA-2005-800.html Not Applicable
http://www.securityfocus.com/bid/12724 PatchThird Party AdvisoryVDB EntryVendor Advisory
http://www.vupen.com/english/advisories/2005/0540 Permissions Required
http://www.vupen.com/english/advisories/2005/3002 Permissions Required
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9747 Third Party Advisory
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.24/SCOSA-2005.24.txt Third Party Advisory
http://marc.info/?l=freebsd-hackers&m=110994026421858&w=2 Mailing List
http://marc.info/?l=freebsd-security&m=110994370429609&w=2 Mailing List
http://marc.info/?l=openbsd-misc&m=110995101417256&w=2 Mailing List
http://secunia.com/advisories/15348 Permissions Required
http://secunia.com/advisories/18165 Permissions Required
http://securitytracker.com/id?1013967 PatchThird Party AdvisoryVDB EntryVendor Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101739-1 Vendor Advisory
http://www-1.ibm.com/support/docview.wss?uid=isg1SSRVHMCHMC_C081516_754 Broken Link
http://www.daemonology.net/hyperthreading-considered-harmful/ Third Party Advisory
http://www.daemonology.net/papers/htt.pdf Third Party Advisory
http://www.kb.cert.org/vuls/id/911878 Third Party AdvisoryUS Government Resource
http://www.redhat.com/support/errata/RHSA-2005-476.html Not Applicable
http://www.redhat.com/support/errata/RHSA-2005-800.html Not Applicable
http://www.securityfocus.com/bid/12724 PatchThird Party AdvisoryVDB EntryVendor Advisory
http://www.vupen.com/english/advisories/2005/0540 Permissions Required
http://www.vupen.com/english/advisories/2005/3002 Permissions Required
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9747 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2005-0109), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.