---
title: "CVE-2023-52159\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-2023-52159?format=md
keywords: index, follow
---

# CVE-2023-52159

Publication date 18 March 2024

Last updated 26 August 2025

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**7.5 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2023-52159?format=md#impact-score)

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## Description

A stack-based buffer overflow vulnerability in gross 0.9.3 through 1.x
before 1.0.4 allows remote attackers to trigger a denial of service (grossd
daemon crash) or potentially execute arbitrary code in grossd via crafted
SMTP transaction parameters that cause an incorrect strncat for a log
entry.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| gross | 24.04 LTS noble | Fixed 1.0.2-4ubuntu0.24.04.1 |
| 23.10 mantic | Ignored end of life, was needed |
| 22.04 LTS jammy | Fixed 1.0.2-4ubuntu0.22.04.1 |
| 20.04 LTS focal | Fixed 1.0.2-4ubuntu0.20.04.1 |
| 18.04 LTS bionic | Fixed 1.0.2-4ubuntu0.18.04.1~esm1  Ubuntu Pro |
| 16.04 LTS xenial | Fixed 1.0.2-4ubuntu0.16.04.1~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)

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## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.5 · High

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.5 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52159)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2023-52159)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2023-52159)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2023-52159)

### Related Ubuntu Security Notices (USN)

+ [USN-6942-1](https://usn.ubuntu.com/USN-6942-1)
+ Gross vulnerability
+ 1 August 2024

### Other references

* <https://codeberg.org/bizdelnick/gross/commit/6403985fc1060e7aacea96e60535e1e7b0f6f193 (master)>
* <https://codeberg.org/bizdelnick/gross/commit/3f5508cce2c49d216b163eb7b38ea72d5162c76e (1.0.4)>
* <https://codeberg.org/bizdelnick/gross/wiki/Known-vulnerabilities#cve-2023-52159>
* <https://www.cve.org/CVERecord?id=CVE-2023-52159>