# CVE-2011-3142: Memory corruption in n/a

> Remote attackers can execute arbitrary code via a stack-based buffer overflow in the KingView ActiveX control, requiring user interaction to visit a malicious page.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 16 Aug 2011
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-7pmx-g6fr-5xwx

## What is CVE-2011-3142?

CVE-2011-3142 is a critical memory corruption vulnerability in n/a, published on 16 Aug 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Stack-based buffer overflow in an ActiveX control in KVWebSvr.dll in WellinTech KingView 6.52 and 6.53 allows remote attackers to execute arbitrary code via a long second argument to the ValidateUser method.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2011-3142?

It affects 1 product.


Products: Wellintech Kingview.

## How do I fix CVE-2011-3142?

No fix has been published for CVE-2011-3142 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-3142 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-3142 exists.

Public exploit code:

- KingView 6.5.3 SCADA - ActiveX (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2012-4711](https://insights.sbomify.com/CVE-2012-4711/): Memory corruption in n/a (critical 10.0)
- [CVE-2012-1830](https://insights.sbomify.com/CVE-2012-1830/): Memory corruption in n/a (critical 10.0)
- [CVE-2012-1831](https://insights.sbomify.com/CVE-2012-1831/): Memory corruption in n/a (critical 10.0)
- [CVE-2012-1832](https://insights.sbomify.com/CVE-2012-1832/): Memory corruption in n/a (critical 10.0)
- [CVE-2011-4536](https://insights.sbomify.com/CVE-2011-4536/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-3142 and fix it if it is affected.

What it is: CVE-2011-3142 is a critical memory corruption vulnerability in n/a, published on 16 Aug 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-3142 exists.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2011-3142/ (Markdown: https://insights.sbomify.com/CVE-2011-3142/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-3142
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-3142
- OSV: https://osv.dev/vulnerability/CVE-2011-3142

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-3142/
Summaries are generated and may contain mistakes; the official description above is the record.