# CVE-2020-0499: Memory corruption in Android

> A heap buffer overflow in the FLAC library allows remote attackers to disclose sensitive information via crafted media files.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L`)
- **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:** 15 Dec 2020
- **Updated:** 4 Aug 2024
- **Also known as:** ALPINE-CVE-2020-0499, DEBIAN-CVE-2020-0499, GHSA-qp4c-cv95-gwhh, MGASA-2020-0480, OESA-2022-1697, SUSE-SU-2021:0017-1, UBUNTU-CVE-2020-0499, openSUSE-SU-2024:11951-1

## What is CVE-2020-0499?

CVE-2020-0499 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 15 Dec 2020. 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

In FLAC__bitreader_read_rice_signed_block of bitreader.c, there is a possible out of bounds read due to a heap buffer overflow. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-156076070

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2020-0499?

It affects 3 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `flac` | SUSE:Enterprise Storage 5 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:HPE Helion OpenStack 8 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Server 12 SP2-LTSS | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Server 12 SP3-LTSS | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Server 12 SP4-LTSS | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Server 12 SP5 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:Linux Enterprise Workstation Extension 12 SP5 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:OpenStack Cloud 7 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:OpenStack Cloud 8 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:OpenStack Cloud 9 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:OpenStack Cloud Crowbar 8 | All versions | 1.3.0-12.3.1 |
| `flac` | SUSE:OpenStack Cloud Crowbar 9 | All versions | 1.3.0-12.3.1 |
| `vlc` | openSUSE:Tumbleweed | All versions | 3.0.17-1.1 |

Products: Debian Debian Linux, Fedoraproject Fedora, Google Android.

## How do I fix CVE-2020-0499?

Apply the vendor's patch.

## Is CVE-2020-0499 being exploited?

There is no known exploitation of CVE-2020-0499 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-0499 and fix it if it is affected.

What it is: CVE-2020-0499 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 15 Dec 2020. 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-2020-0499 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2020-0499/ (Markdown: https://insights.sbomify.com/CVE-2020-0499/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-0499
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-0499
- OSV: https://osv.dev/vulnerability/CVE-2020-0499

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-0499/
Summaries are generated and may contain mistakes; the official description above is the record.
