---
title: "CVE-2022-29458\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-2022-29458?format=md
keywords: index, follow
---

# CVE-2022-29458

Publication date 18 April 2022

Last updated 25 August 2025

---

Ubuntu priority

**Negligible**

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

## Cvss 3 Severity Score

**7.1 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2022-29458?format=md#impact-score)

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## Description

ncurses 6.3 before patch 20220416 has an out-of-bounds read and
segmentation violation in convert\_strings in tinfo/read\_entry.c in the
terminfo library.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2022-29458?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| ncurses | 23.04 lunar | Not affected |
| 22.10 kinetic | Not affected |
| 22.04 LTS jammy | Fixed 6.3-2ubuntu0.1 |
| 21.10 impish | Ignored end of life |
| 20.04 LTS focal | Fixed 6.2-0ubuntu2.1 |
| 18.04 LTS bionic | Fixed 6.1-1ubuntu1.18.04.1 |
| 16.04 LTS xenial | Fixed 6.0+20160213-1ubuntu1+esm2  Ubuntu Pro |
| 14.04 LTS trusty | Fixed 5.9+20140118-1ubuntu1+esm2  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-2022-29458?format=md#patch-details)

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## Notes

---

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

DoS only

### 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 |
| --- | --- |
| ncurses | * Upstream:   [4c9f63c](https://github.com/mirror/ncurses/commit/4c9f63c460cb7134f142aa65f6866c175ed77605) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.1 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.1 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-29458)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2022-29458)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2022-29458)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2022-29458)

### Related Ubuntu Security Notices (USN)

+ [USN-5477-1](https://usn.ubuntu.com/USN-5477-1)
+ ncurses vulnerabilities
+ 14 June 2022

+ [USN-6099-1](https://usn.ubuntu.com/USN-6099-1)
+ ncurses vulnerabilities
+ 23 May 2023

### Other references

* <https://lists.gnu.org/archive/html/bug-ncurses/2022-04/msg00014.html>
* <https://lists.gnu.org/archive/html/bug-ncurses/2022-04/msg00016.html>
* <https://invisible-island.net/ncurses/NEWS.html#t20220416>
* <https://www.cve.org/CVERecord?id=CVE-2022-29458>