---
title: "CVE-2020-0499\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2020-0499?format=md
keywords: index, follow
---

# CVE-2020-0499

Publication date 15 December 2020

Last updated 25 August 2025

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**4.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2020-0499?format=md#impact-score)

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## 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

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| flac | 22.10 kinetic | Not affected |
| 22.04 LTS jammy | Not affected |
| 21.10 impish | Ignored end of life |
| 21.04 hirsute | Ignored end of life |
| 20.10 groovy | Ignored end of life |
| 20.04 LTS focal | Fixed 1.3.3-1ubuntu0.1 |
| 18.04 LTS bionic | Fixed 1.3.2-1ubuntu0.1 |
| 16.04 LTS xenial | Fixed 1.3.1-4ubuntu0.1~esm1  Ubuntu Pro |
| 14.04 LTS trusty | Fixed 1.3.0-2ubuntu0.14.04.1+esm1  Ubuntu Pro |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2020-0499?format=md#patch-details)

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### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| flac | * Upstream:   [2e7931c](https://github.com/xiph/flac/commit/2e7931c27eb15e387da440a37f12437e35b22dd4) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

4.3 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | Required |
  | Scope | Unchanged |
  | Confidentiality impact | None |
  | Integrity impact | None |
  | Availability impact | Low |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 4.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-0499)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2020-0499)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2020-0499)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2020-0499)

### Related Ubuntu Security Notices (USN)

+ [USN-5733-1](https://usn.ubuntu.com/USN-5733-1)
+ FLAC vulnerabilities
+ 21 November 2022

### Other references

* <https://android.googlesource.com/platform/external/flac/+/029048f823ced50f63a92e25073427ec3a9bd909%5E%21/#F0>
* <https://source.android.com/security/bulletin/pixel/2020-12-01>
* <https://www.cve.org/CVERecord?id=CVE-2020-0499>