# CVE-2011-1761: Memory corruption in n/a

> Remote attackers can execute arbitrary code or cause a crash via a crafted ABC file due to stack-based buffer overflows in libmodplug.

- **Severity:** Medium 6.8 (`AV:N/AC:M/Au:N/C:P/I:P/A:P`)
- **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:** Yes
- **Published:** 7 Jun 2012
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2011-1761, GHSA-ww46-w65w-8q48

## What is CVE-2011-1761?

CVE-2011-1761 is a medium-severity memory corruption vulnerability in n/a, published on 7 Jun 2012. 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

Multiple stack-based buffer overflows in the (1) abc_new_macro and (2) abc_new_umacro functions in src/load_abc.cpp in libmodplug before 0.8.8.3 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted ABC file.  NOTE: some of these details are obtained from third party information.

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

## Which versions are affected by CVE-2011-1761?

It affects 1 product.


Products: Konstanty Bialkowski Libmodplug.

## How do I fix CVE-2011-1761?

Upgrade to a fixed version.

## Is CVE-2011-1761 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-1761 exists.

Public exploit code:

- Libmodplug 0.8.8.2 - '.abc' Stack Buffer Overflow (PoC) (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2009-1438](https://insights.sbomify.com/CVE-2009-1438/): Integer overflow in n/a (high 7.5)
- [CVE-2011-2911](https://insights.sbomify.com/CVE-2011-2911/): Integer overflow in n/a (medium 6.8)
- [CVE-2011-2912](https://insights.sbomify.com/CVE-2011-2912/): Memory corruption in n/a (medium 6.8)
- [CVE-2011-2913](https://insights.sbomify.com/CVE-2011-2913/): Integer overflow in n/a (medium 6.8)
- [CVE-2011-2914](https://insights.sbomify.com/CVE-2011-2914/): Integer overflow in n/a (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-1761 and fix it if it is affected.

What it is: CVE-2011-1761 is a medium-severity memory corruption vulnerability in n/a, published on 7 Jun 2012. 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-2011-1761 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-2011-1761/ (Markdown: https://insights.sbomify.com/CVE-2011-1761/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-1761
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-1761
- OSV: https://osv.dev/vulnerability/CVE-2011-1761

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From sbomify Insights: https://insights.sbomify.com/CVE-2011-1761/
Summaries are generated and may contain mistakes; the official description above is the record.