# CVE-2010-2520: Memory corruption in n/a

> Remote attackers can execute arbitrary code or crash applications via crafted font files in FreeType when TrueType bytecode support is enabled.

- **Severity:** Medium 5.1 (`AV:N/AC:H/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:** 19 Aug 2010
- **Updated:** 7 Aug 2024
- **Also known as:** DEBIAN-CVE-2010-2520, GHSA-hfjf-652v-fg9x

## What is CVE-2010-2520?

CVE-2010-2520 is a medium-severity memory corruption vulnerability in Apple Mac Os X, published on 19 Aug 2010. 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

Heap-based buffer overflow in the Ins_IUP function in truetype/ttinterp.c in FreeType before 2.4.0, when TrueType bytecode support is enabled, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2010-2520?

It affects 4 products.


Products: Apple Mac Os X, Canonical Ubuntu Linux, Debian Debian Linux, Freetype Freetype.

## How do I fix CVE-2010-2520?

Upgrade to a fixed version.

## Is CVE-2010-2520 being exploited?

There is no known exploitation of CVE-2010-2520 in the wild and no public exploit code.

## Other vulnerabilities in Apple Mac Os X

- [CVE-2014-7169](https://insights.sbomify.com/CVE-2014-7169/): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2014-6271](https://insights.sbomify.com/CVE-2014-6271/): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2012-1823](https://insights.sbomify.com/CVE-2012-1823/): PHP-CGI Query String Parameter (critical 9.8, exploited in the wild)
- [CVE-2021-30713](https://insights.sbomify.com/CVE-2021-30713/): Apple macOS Unspecified (high 7.8, exploited in the wild)
- [CVE-2019-8526](https://insights.sbomify.com/CVE-2019-8526/): Apple macOS Use-After-Free (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2010-2520 and fix it if it is affected.

What it is: CVE-2010-2520 is a medium-severity memory corruption vulnerability in Apple Mac Os X, published on 19 Aug 2010. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2010-2520 in the wild and no public exploit code.

Affected product: Apple Mac Os X. 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-2010-2520/ (Markdown: https://insights.sbomify.com/CVE-2010-2520/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-2520
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-2520
- OSV: https://osv.dev/vulnerability/CVE-2010-2520

---
From sbomify Insights: https://insights.sbomify.com/CVE-2010-2520/
Summaries are generated and may contain mistakes; the official description above is the record.