Sun Solaris microcode denial of service

solaris-microcode-dos (55991) The risk level is classified as MediumMedium Risk

Description:

Sun Solaris is vulnerable to a denial of service, caused by a NULL pointer dereference within the microcode device. By sending a specially-crafted UCODE_GET_VERSION IOCTL request, a local attacker could exploit this vulnerability to cause the kernel to panic.

*CVSS:

Base Score: 4.9
  Access Vector: Local
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Complete
 
Temporal Score: 4
  Exploitability: Functional
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to Sun Alert ID: 143913-01 for patch, upgrade or suggested workaround information. See References.

References:

  • Oracle Critical Patch Update Advisory - April 2010: Oracle Critical Patch Update Advisory - April 2010.
  • Sun Alert ID: 143913-01: SunOS 5.10_x86: ucode driver patch.
  • TKADV2010-001: Oracle Solaris UCODE_GET_VERSION IOCTL Kernel NULL Pointer Dereference.
  • BID-38016: Sun Solaris 'CODE_GET_VERSION IOCTL' Local Denial Of Service Vulnerability
  • BID-39333: RETIRED: Oracle April 2010 Critical Patch Update Multiple Vulnerabilities
  • CVE-2010-0453: 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.
  • OSVDB ID: 62046: Solaris Microcode Device UCODE_GET_VERSION IOCTL NULL Dereference Local DoS
  • SA38452: Solaris Microcode Device Denial of Service Vulnerability
  • VUPEN/ADV-2010-0270: Sun Solaris Microcode Local Denial of Service Vulnerability

Platforms Affected:

  • Oracle Sun Product Suite
  • Sun OpenSolaris build_snv_100 x86
  • Sun OpenSolaris build_snv_101 x86
  • Sun OpenSolaris build_snv_102 x86
  • Sun OpenSolaris build_snv_103 x86
  • Sun OpenSolaris build_snv_104 x86
  • Sun OpenSolaris build_snv_105 x86
  • Sun OpenSolaris build_snv_106 x86
  • Sun OpenSolaris build_snv_107 x86
  • Sun OpenSolaris build_snv_108 x86
  • Sun OpenSolaris build_snv_109 x86
  • Sun OpenSolaris build_snv_110 x86
  • Sun OpenSolaris build_snv_111 x86
  • Sun OpenSolaris build_snv_112 x86
  • Sun OpenSolaris build_snv_113 x86
  • Sun OpenSolaris build_snv_114 x86
  • Sun OpenSolaris build_snv_115 x86
  • Sun OpenSolaris build_snv_116 x86
  • Sun OpenSolaris build_snv_117 x86
  • Sun OpenSolaris build_snv_118 x86
  • Sun OpenSolaris build_snv_119 x86
  • Sun OpenSolaris build_snv_120 x86
  • Sun OpenSolaris build_snv_121 x86
  • Sun OpenSolaris build_snv_122 x86
  • Sun OpenSolaris build_snv_123 x86
  • Sun OpenSolaris build_snv_124 x86
  • Sun OpenSolaris build_snv_125 x86
  • Sun OpenSolaris build_snv_126 x86
  • Sun OpenSolaris build_snv_127 x86
  • Sun OpenSolaris build_snv_128 x86
  • Sun OpenSolaris build_snv_129 x86
  • Sun OpenSolaris build_snv_130 x86
  • Sun OpenSolaris build_snv_131 x86
  • Sun OpenSolaris build_snv_132 x86
  • Sun OpenSolaris build_snv_133 x86
  • Sun OpenSolaris build_snv_69 x86
  • Sun OpenSolaris build_snv_70 x86
  • Sun OpenSolaris build_snv_71 x86
  • Sun OpenSolaris build_snv_72 x86
  • Sun OpenSolaris build_snv_73 x86
  • Sun OpenSolaris build_snv_74 x86
  • Sun OpenSolaris build_snv_75 x86
  • Sun OpenSolaris build_snv_76 x86
  • Sun OpenSolaris build_snv_77 x86
  • Sun OpenSolaris build_snv_78 x86
  • Sun OpenSolaris build_snv_79 x86
  • Sun OpenSolaris build_snv_80 x86
  • Sun OpenSolaris build_snv_81 x86
  • Sun OpenSolaris build_snv_82 x86
  • Sun OpenSolaris build_snv_83 x86
  • Sun OpenSolaris build_snv_84 x86
  • Sun OpenSolaris build_snv_85 x86
  • Sun OpenSolaris build_snv_86 x86
  • Sun OpenSolaris build_snv_87 x86
  • Sun OpenSolaris build_snv_88 x86
  • Sun OpenSolaris build_snv_89 x86
  • Sun OpenSolaris build_snv_90 x86
  • Sun OpenSolaris build_snv_91 x86
  • Sun OpenSolaris build_snv_92 x86
  • Sun OpenSolaris build_snv_93 x86
  • Sun OpenSolaris build_snv_94 x86
  • Sun OpenSolaris build_snv_95 x86
  • Sun OpenSolaris build_snv_96 x86
  • Sun OpenSolaris build_snv_97 x86
  • Sun OpenSolaris build_snv_98 x86
  • Sun OpenSolaris build_snv_99 x86
  • Sun Solaris 10 x86
  • Sun Solaris 10.0 x86

Reported:

Jan 29, 2010

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