---
title: CVE-2020-13434
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-2020-13434
---

# CVE-2020-13434

Publication date 24 May 2020

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**5.5 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2020-13434#impact-score)

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## Description

SQLite through 3.32.0 has an integer overflow in sqlite3\_str\_vappendf in
printf.c.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2020-13434#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| sqlite3 | 20.04 LTS focal | Fixed 3.31.1-4ubuntu0.1 |
| 19.10 eoan | Fixed 3.29.0-2ubuntu0.3 |
| 18.04 LTS bionic | Fixed 3.22.0-1ubuntu0.4 |
| 16.04 LTS xenial | Fixed 3.11.0-1ubuntu1.5 |
| 14.04 LTS trusty | Not affected |

---

* [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-2020-13434#patch-details)

## Notes

---

### [leosilva](https://launchpad.net/~leosilva)

printf function support was added in 3.8.3 by commit
https://github.com/sqlite/sqlite/commit/a5c1416d64b4b857721f085258b6ef1dcaeb6f5b

### 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 |
| --- | --- |
| sqlite3 | * Upstream:   <https://www.sqlite.org/src/info/d08d3405878d394e> * Upstream:   [dd6c33d](https://github.com/sqlite/sqlite/commit/dd6c33d372f3b83f4fe57904c2bd5ebba5c38018) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.5 · Medium

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.5 · Medium |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13434)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2020-13434)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2020-13434)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2020-13434)

### Related Ubuntu Security Notices (USN)

+ [USN-4394-1](https://usn.ubuntu.com/USN-4394-1)
+ SQLite vulnerabilities
+ 10 June 2020

### Other references

* <https://lists.debian.org/debian-lts-announce/2020/05/msg00024.html>
* <https://www.cve.org/CVERecord?id=CVE-2020-13434>