security flaw
Published Mar 8, 2005
5.6
MEDIUMCVSS 3.0
EPSS 0.51%
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.
Affected products
No data.
- 1.1.5.1
- 2.0
- 2.0.5
- 2.1.0
- 2.1.5
- 2.1.6
- 2.1.6.1
- 2.1.7.1
- 2.2
- 2.2.2
- 2.2.3
- 2.2.4
- 2.2.5
- 2.2.6
- 2.2.8
- 3.0
- 3.0
- 3.1
- 3.2
- 3.3
- 3.4
- 3.5
- 3.5
- 3.5.1
- 3.5.1
- 3.5.1
- 4.0
- 4.0
- 4.0
- 4.1
- 4.1.1
- 4.1.1
- 4.1.1
- 4.2
- 4.2
- 4.3
- 4.3
- 4.3
- 4.3
- 4.3
- 4.4
- 4.4
- 4.4
- 4.4
- 4.5
- 4.5
- 4.5
- 4.5
- 4.5
- 4.6
- 4.6
- 4.6
- 4.6
- 4.6
- 4.6.2
- 4.7
- 4.7
- 4.7
- 4.7
- 4.7
- 4.8
- 4.8
- 4.8
- 4.8
- 4.9
- 4.9
- 4.9
- 4.10
- 4.10
- 4.10
- 4.10
- 4.11
- 4.11
- 4.11
- 5.0
- 5.0
- 5.0
- 5.0
- 5.1
- 5.1
- 5.1
- 5.1
- 5.1
- 5.2
- 5.2.1
- 5.2.1
- 5.3
- 5.3
- 5.3
- 5.3
- 5.4
- 2.1
- 2.1
- 2.1
- 2.1
- 2.1
- 2.1
- 3.0
- 3.0
- 3.0
- 4.0
- 4.0
- 4.0
- 3.0
- 4.0
- core_3.0
- 5.0.7
- 7.1.3
- 7.1.3_up
- 7.1.4
- 7.0
- 8.0
- 9.0
- 9.0
- 10.0
- 4.1
- 4.1
- 5.04
- 5.04
- 5.04
No data.
Red Hat Enterprise Linux 3
openssl-0:0.9.7a-33.15
Fixed · RHSA-2005:476
Red Hat Enterprise Linux 3
openssl-0:0.9.7a-33.17
Fixed · RHSA-2005:800
Red Hat Enterprise Linux 3
openssl096b-0:0.9.6b-16.22.3
Fixed · RHSA-2005:476
Red Hat Enterprise Linux 3
openssl096b-0:0.9.6b-16.22.4
Fixed · RHSA-2005:800
Red Hat Enterprise Linux 4
openssl-0:0.9.7a-43.2
Fixed · RHSA-2005:476
Red Hat Enterprise Linux 4
openssl-0:0.9.7a-43.4
Fixed · RHSA-2005:800
Red Hat Enterprise Linux 4
openssl096b-0:0.9.6b-22.3
Fixed · RHSA-2005:476
Red Hat Enterprise Linux 4
openssl096b-0:0.9.6b-22.4
Fixed · RHSA-2005:800
Red Hat Stronghold 4
n/a
Fixed · RHSA-2005:882
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | openssl-0:0.9.7a-33.15 | Fixed | RHSA-2005:476 |
| Red Hat Enterprise Linux 3 | openssl-0:0.9.7a-33.17 | Fixed | RHSA-2005:800 |
| Red Hat Enterprise Linux 3 | openssl096b-0:0.9.6b-16.22.3 | Fixed | RHSA-2005:476 |
| Red Hat Enterprise Linux 3 | openssl096b-0:0.9.6b-16.22.4 | Fixed | RHSA-2005:800 |
| Red Hat Enterprise Linux 4 | openssl-0:0.9.7a-43.2 | Fixed | RHSA-2005:476 |
| Red Hat Enterprise Linux 4 | openssl-0:0.9.7a-43.4 | Fixed | RHSA-2005:800 |
| Red Hat Enterprise Linux 4 | openssl096b-0:0.9.6b-22.3 | Fixed | RHSA-2005:476 |
| Red Hat Enterprise Linux 4 | openssl096b-0:0.9.6b-22.4 | Fixed | RHSA-2005:800 |
| Red Hat Stronghold 4 | n/a | Fixed | RHSA-2005:882 |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
AV:L/AC:M/Au:N/C:C/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.51% (0.00509) | 41.25th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.51% (0.00505) | 38.92th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.14% (0.00141) | 31.72th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00074) | 33.99th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.07% (0.00075) | 32.32th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00075) | 30.29th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.92% (0.01916) | 77.44th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.92% (0.01916) | 77.43th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.92% (0.01916) | 75.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.92% (0.01916) | 54.59th | v2 (v2022.01.01) |
No CWE recorded.
References (22)
- ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.24/SCOSA-2005.24.txt vendor-advisoryx_refsource_SCOThird Party Advisory
- http://marc.info/?l=freebsd-hackers&m=110994026421858&w=2 mailing-listx_refsource_MLISTMailing List
- http://marc.info/?l=freebsd-security&m=110994370429609&w=2 mailing-listx_refsource_MLISTMailing List
- http://marc.info/?l=openbsd-misc&m=110995101417256&w=2 mailing-listx_refsource_MLISTMailing List
- http://secunia.com/advisories/15348 third-party-advisoryx_refsource_SECUNIAPermissions Required
- http://secunia.com/advisories/18165 third-party-advisoryx_refsource_SECUNIAPermissions Required
- http://securitytracker.com/id?1013967 vdb-entryx_refsource_SECTRACKPatchThird Party AdvisoryVDB EntryVendor Advisory
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-101739-1 vendor-advisoryx_refsource_SUNALERTVendor Advisory
- http://www-1.ibm.com/support/docview.wss?uid=isg1SSRVHMCHMC_C081516_754 x_refsource_MISCBroken Link
- http://www.daemonology.net/hyperthreading-considered-harmful/ x_refsource_MISCThird Party Advisory
- http://www.daemonology.net/papers/htt.pdf x_refsource_MISCThird Party Advisory
- http://www.kb.cert.org/vuls/id/911878 third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
- http://www.redhat.com/support/errata/RHSA-2005-476.html vendor-advisoryx_refsource_REDHATNot Applicable
- http://www.redhat.com/support/errata/RHSA-2005-800.html vendor-advisoryx_refsource_REDHATNot Applicable
- http://www.securityfocus.com/bid/12724 vdb-entryx_refsource_BIDPatchThird Party AdvisoryVDB EntryVendor Advisory
- http://www.vupen.com/english/advisories/2005/0540 vdb-entryx_refsource_VUPENPermissions Required
- http://www.vupen.com/english/advisories/2005/3002 vdb-entryx_refsource_VUPENPermissions Required
- https://access.redhat.com/security/cve/CVE-2005-0109 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1617463 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2005-0109
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9747 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2005-0109
Change history (0)
No recorded changes yet.