---
title: "CVE-2022-4645\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-2022-4645?format=md
keywords: index, follow
---

# CVE-2022-4645

Publication date 3 March 2023

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-2022-4645?format=md#impact-score)

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## Description

LibTIFF 4.4.0 has an out-of-bounds read in tiffcp in tools/tiffcp.c:948,
allowing attackers to cause a denial-of-service via a crafted tiff file.
For users that compile libtiff from sources, the fix is available with
commit e8131125.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2022-4645?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| tiff | 23.04 lunar | Not affected |
| 22.10 kinetic | Fixed 4.4.0-4ubuntu3.1 |
| 22.04 LTS jammy | Fixed 4.3.0-6ubuntu0.2 |
| 20.04 LTS focal | Fixed 4.1.0+git191117-2ubuntu0.20.04.6 |
| 18.04 LTS bionic | Fixed 4.0.9-5ubuntu0.8 |
| 16.04 LTS xenial | Fixed 4.0.6-1ubuntu0.8+esm7  Ubuntu Pro |
| 14.04 LTS trusty | Fixed 4.0.3-7ubuntu0.11+esm5  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-2022-4645?format=md#patch-details)

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## Notes

---

### [0xnishit](https://launchpad.net/~0xnishit)

This CVE has the same fix as CVE-2022-3599. CVE-2022-3599 has
already been fixed across releases.

### 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 |
| --- | --- |
| tiff | * Upstream:   [e813112](https://gitlab.com/libtiff/libtiff/-/commit/e813112545942107551433d61afd16ac094ff246) |

## 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-2022-4645)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-4645)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-4645)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-4645)

### Other references

* <https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-4645.json>
* <https://www.cve.org/CVERecord?id=CVE-2022-4645>