# CVE-2020-13434: Integer overflow in n/a

> An integer overflow in SQLite's printf function can lead to a denial of service, affecting applications using the library.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 24 May 2020
- **Updated:** 14 Oct 2026
- **Also known as:** ALPINE-CVE-2020-13434, AZL-38614, BIT-sqlite-2020-13434, CLEANSTART-2026-SF72367, DEBIAN-CVE-2020-13434, DLA-2221-1, GHSA-fjp7-rxx4-gq9h, UBUNTU-CVE-2020-13434

## What is CVE-2020-13434?

CVE-2020-13434 is a medium-severity vulnerability in Apple Icloud, published on 24 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

SQLite through 3.32.0 has an integer overflow in sqlite3_str_vappendf in printf.c.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2020-13434?

1 open source package ship an affected version, including sqlite. It affects 15 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `sqlite` | Bitnami | All versions | 3.32.1 |

Products: Apple Icloud, Apple Ipados, Apple Iphone Os, Apple Itunes, Apple Macos, Apple Tvos, Apple Watchos, Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Freebsd Freebsd, Oracle Communications Cloud Native Core Policy, Oracle Communications Network Charging and Control, Oracle Outside in Technology, Sqlite Sqlite.

## How do I fix CVE-2020-13434?

Upgrade sqlite to 3.32.1 or later.

## Is CVE-2020-13434 being exploited?

There is no known exploitation of CVE-2020-13434 in the wild and no public exploit code.

## Other vulnerabilities in Apple Icloud

- [CVE-2019-8506](https://insights.sbomify.com/CVE-2019-8506/): Apple Multiple Products Type Confusion (high 8.8, exploited in the wild)
- [CVE-2020-27932](https://insights.sbomify.com/CVE-2020-27932/): Apple Multiple Products Type Confusion (high 7.8, exploited in the wild)
- [CVE-2019-8746](https://insights.sbomify.com/CVE-2019-8746/): Memory corruption in iOS (critical 9.8)
- [CVE-2019-8749](https://insights.sbomify.com/CVE-2019-8749/): Memory corruption in iOS (critical 9.8)
- [CVE-2019-8756](https://insights.sbomify.com/CVE-2019-8756/): Memory corruption in iOS (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-13434 and fix it if it is affected.

What it is: CVE-2020-13434 is a medium-severity vulnerability in Apple Icloud, published on 24 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-13434 in the wild and no public exploit code.

Affected packages and fixed versions:
- sqlite (Bitnami): affected all versions; fixed in 3.32.1

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-2020-13434/ (Markdown: https://insights.sbomify.com/CVE-2020-13434/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-13434
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-13434
- OSV: https://osv.dev/vulnerability/CVE-2020-13434

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-13434/
Summaries are generated and may contain mistakes; the official description above is the record.