CVE-2005-0109
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…
Does this matter?
Lower severity and a low EPSS score (0.51%). Track it; it rarely justifies an emergency change on its own.
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
- 5.6 MEDIUMCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- EPSS
- 0.51% probability · 43th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- freebsd/freebsd · redhat/enterprise linux · redhat/enterprise linux desktop · redhat/fedora core · sco/openserver · sco/unixware · sun/solaris · ubuntu/ubuntu linux
- Source
- cve@mitre.org
EPSS 0.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.24/SCOSA-2005.24.txtThird Party Advisory
- http://marc.info/?l=freebsd-hackers&m=110994026421858&w=2Mailing List
- http://marc.info/?l=freebsd-security&m=110994370429609&w=2Mailing List
- http://marc.info/?l=openbsd-misc&m=110995101417256&w=2Mailing List
- http://secunia.com/advisories/15348Permissions Required
- http://secunia.com/advisories/18165Permissions Required
- http://securitytracker.com/id?1013967Patch, Third Party Advisory, VDB Entry, Vendor Advisory
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-101739-1Vendor Advisory
- http://www-1.ibm.com/support/docview.wss?uid=isg1SSRVHMCHMC_C081516_754Broken Link
- http://www.daemonology.net/hyperthreading-considered-harmful/Third Party Advisory
- http://www.daemonology.net/papers/htt.pdfThird Party Advisory
- http://www.kb.cert.org/vuls/id/911878Third Party Advisory, US Government Resource
- http://www.redhat.com/support/errata/RHSA-2005-476.htmlNot Applicable
- http://www.redhat.com/support/errata/RHSA-2005-800.htmlNot Applicable
- http://www.securityfocus.com/bid/12724Patch, Third Party Advisory, VDB Entry, Vendor Advisory
- http://www.vupen.com/english/advisories/2005/0540Permissions Required
- http://www.vupen.com/english/advisories/2005/3002Permissions Required
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9747Third Party Advisory
- ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.24/SCOSA-2005.24.txtThird Party Advisory
- http://marc.info/?l=freebsd-hackers&m=110994026421858&w=2Mailing List
- http://marc.info/?l=freebsd-security&m=110994370429609&w=2Mailing List
- http://marc.info/?l=openbsd-misc&m=110995101417256&w=2Mailing List
- http://secunia.com/advisories/15348Permissions Required
- http://secunia.com/advisories/18165Permissions Required
- http://securitytracker.com/id?1013967Patch, Third Party Advisory, VDB Entry, Vendor Advisory
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-101739-1Vendor Advisory
- http://www-1.ibm.com/support/docview.wss?uid=isg1SSRVHMCHMC_C081516_754Broken Link
- http://www.daemonology.net/hyperthreading-considered-harmful/Third Party Advisory
- http://www.daemonology.net/papers/htt.pdfThird Party Advisory
- http://www.kb.cert.org/vuls/id/911878Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.