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.

Affected products

Opensolaris, Sun Solaris

Sun Opensolaris

= 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

Fix

Available

CVSS 2.0

4.9 MEDIUM

EPSS

0.8% (55th percentile)

Weakness

CWE-20

NVD status

Modified

Published

2010-02-03