The ucode_ioctl function in intel/io/ucode_drv.c in Sun Solaris 10 and OpenSolaris snv_69 through snv_133, when running on x86 architectures, allows local users to cause a denial of service (panic) via a request with a 0 size value to the UCODE_GET_VERSION IOCTL, which triggers a NULL pointer dereference in the ucode_get_rev function, related to retrieval of the microcode revision
Published Feb 3, 2010
4.9
MEDIUMCVSS 2.0
EPSS 0.83%
Description
The ucode_ioctl function in intel/io/ucode_drv.c in Sun Solaris 10 and OpenSolaris snv_69 through snv_133, when running on x86 architectures, allows local users to cause a denial of service (panic) via a request with a 0 size value to the UCODE_GET_VERSION IOCTL, which triggers a NULL pointer dereference in the ucode_get_rev function, related to retrieval of the microcode revision.
Affected products
No data.
- snv_69
- snv_70
- snv_71
- snv_72
- snv_73
- snv_74
- snv_75
- snv_76
- snv_77
- snv_78
- snv_79
- snv_80
- snv_81
- snv_82
- snv_83
- snv_84
- snv_85
- snv_86
- snv_87
- snv_88
- snv_89
- snv_90
- snv_91
- snv_92
- snv_93
- snv_94
- snv_95
- snv_96
- snv_97
- snv_98
- snv_99
- snv_100
- snv_101
- snv_102
- snv_103
- snv_104
- snv_105
- snv_106
- snv_107
- snv_108
- snv_109
- snv_110
- snv_111
- snv_112
- snv_113
- snv_114
- snv_115
- snv_116
- snv_117
- snv_118
- snv_119
- snv_120
- snv_121
- snv_122
- snv_123
- snv_124
- snv_125
- snv_126
- snv_127
- snv_128
- snv_129
- snv_130
- snv_131
- snv_132
- snv_133
- 10.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:C
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 (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.83% (0.00831) | 56.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.83% (0.00831) | 52.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.31% (0.00307) | 51.73th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00043) | 5.18th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00043) | 5.81th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.22% (0.03220) | 84.21th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.22% (0.03220) | 82.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.22% (0.03220) | 65.30th | v2 (v2022.01.01) |
References (13)
- http://osvdb.org/62046 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/38452 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://sunsolve.sun.com/search/document.do?assetkey=1-21-143913-01-1 x_refsource_CONFIRMPatch
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-275910-1 vendor-advisoryx_refsource_SUNALERT
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021799.1-1 vendor-advisoryx_refsource_SUNALERT
- http://www.oracle.com/technetwork/topics/security/cpuapr2010-099504.html x_refsource_CONFIRM
- http://www.securityfocus.com/archive/1/509276/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/38016 vdb-entryx_refsource_BID
- http://www.trapkit.de/advisories/TKADV2010-001.txt x_refsource_MISC
- http://www.us-cert.gov/cas/techalerts/TA10-103B.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vupen.com/english/advisories/2010/0270 vdb-entryx_refsource_VUPENPatchVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55991 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6959 vdb-entrysignaturex_refsource_OVAL
Change history (0)
No recorded changes yet.