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.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
| Link | Tags |
|---|---|
| http://www.us-cert.gov/cas/techalerts/TA10-103B.html | third party advisory us government resource |
| http://sunsolve.sun.com/search/document.do?assetkey=1-21-143913-01-1 | patch |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/55991 | vdb entry |
| http://secunia.com/advisories/38452 | third party advisory vendor advisory |
| http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021799.1-1 | vendor advisory |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6959 | vdb entry signature |
| http://www.oracle.com/technetwork/topics/security/cpuapr2010-099504.html | |
| http://www.securityfocus.com/archive/1/509276/100/0/threaded | mailing list |
| http://www.securityfocus.com/bid/38016 | vdb entry |
| http://sunsolve.sun.com/search/document.do?assetkey=1-66-275910-1 | vendor advisory |
| http://osvdb.org/62046 | vdb entry |
| http://www.trapkit.de/advisories/TKADV2010-001.txt | |
| http://www.vupen.com/english/advisories/2010/0270 | vdb entry patch vendor advisory |