CVE-2010-0453: Sun Opensolaris

Medium severity, CVSS 4.9. EPSS: 0.8% chance of exploitation in the next 30 days.

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

• Sun Opensolaris: version snv_69 only; version snv_70 only; version snv_71 only; version snv_72 only; version snv_73 only; version snv_74 only; …
• Sun Solaris: version 10.0 only

Published 2010-02-03. Last modified 2026-06-16.