# CVE-2020-12761: Integer overflow in n/a

> An integer overflow in imlib2 allows attackers to cause invalid memory allocations and out-of-bounds reads via a crafted icon file.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 9 May 2020
- **Updated:** 4 Aug 2024
- **Also known as:** DEBIAN-CVE-2020-12761, GHSA-4fv4-55mw-p3v4, UBUNTU-CVE-2020-12761, USN-5099-1, openSUSE-SU-2024:13010-1

## What is CVE-2020-12761?

CVE-2020-12761 is a critical vulnerability in n/a, published on 9 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

modules/loaders/loader_ico.c in imlib2 1.6.0 has an integer overflow (with resultant invalid memory allocations and out-of-bounds reads) via an icon with many colors in its color map.

Weakness: CWE-190 (Integer Overflow or Wraparound), CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2020-12761?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `imlib2` | openSUSE:Tumbleweed | All versions | 1.11.1-2.1 |

Products: Enlightenment Imlib2.

## How do I fix CVE-2020-12761?

Apply the vendor's patch.

## Is CVE-2020-12761 being exploited?

There is no known exploitation of CVE-2020-12761 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2008-6079](https://insights.sbomify.com/CVE-2008-6079/): Memory corruption in n/a (critical 10.0)
- [CVE-2024-25447](https://insights.sbomify.com/CVE-2024-25447/): Memory corruption in n/a (high 8.8)
- [CVE-2024-25448](https://insights.sbomify.com/CVE-2024-25448/): Memory corruption in n/a (high 8.8)
- [CVE-2024-25450](https://insights.sbomify.com/CVE-2024-25450/): Memory corruption in n/a (high 8.8)
- [CVE-2008-5187](https://insights.sbomify.com/CVE-2008-5187/): Memory corruption in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-12761 and fix it if it is affected.

What it is: CVE-2020-12761 is a critical vulnerability in n/a, published on 9 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-12761 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-2020-12761/ (Markdown: https://insights.sbomify.com/CVE-2020-12761/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12761
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12761
- OSV: https://osv.dev/vulnerability/CVE-2020-12761

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-12761/
Summaries are generated and may contain mistakes; the official description above is the record.