# CVE-2009-4902: Memory corruption in n/a

> Local attackers can exploit a buffer overflow in the PC/SC daemon to gain elevated privileges via crafted messages.

- **Severity:** Medium 6.8 (`AV:L/AC:L/Au:S/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Jun 2010
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-3ff4-45xf-q76c

## What is CVE-2009-4902?

CVE-2009-4902 is a medium-severity memory corruption vulnerability in n/a, published on 18 Jun 2010. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Buffer overflow in the MSGFunctionDemarshall function in winscard_svc.c in the PC/SC Smart Card daemon (aka PCSCD) in MUSCLE PCSC-Lite 1.5.4 and earlier might allow local users to gain privileges via crafted SCARD_CONTROL message data, which is improperly demarshalled.  NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-0407.

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

## Which versions are affected by CVE-2009-4902?

It affects 1 product.


Products: Muscle Pcsc-Lite.

## How do I fix CVE-2009-4902?

No fix has been published for CVE-2009-4902 yet. Limit exposure of the affected software until one is available.

## Is CVE-2009-4902 being exploited?

There is no known exploitation of CVE-2009-4902 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2010-0407](https://insights.sbomify.com/CVE-2010-0407/): Memory corruption in n/a (medium 6.8)
- [CVE-2010-4530](https://insights.sbomify.com/CVE-2010-4530/): Integer overflow in n/a (medium 4.4)
- [CVE-2010-4531](https://insights.sbomify.com/CVE-2010-4531/): Memory corruption in n/a (medium 4.4)
- [CVE-2009-4901](https://insights.sbomify.com/CVE-2009-4901/): Memory corruption in n/a (low 2.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2009-4902 and fix it if it is affected.

What it is: CVE-2009-4902 is a medium-severity memory corruption vulnerability in n/a, published on 18 Jun 2010. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2009-4902 in the wild and no public exploit code.

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-2009-4902/ (Markdown: https://insights.sbomify.com/CVE-2009-4902/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2009-4902
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2009-4902
- OSV: https://osv.dev/vulnerability/CVE-2009-4902

---
From sbomify Insights: https://insights.sbomify.com/CVE-2009-4902/
Summaries are generated and may contain mistakes; the official description above is the record.