---
title: "CVE-2020-24979\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-2020-24979?format=md
keywords: index, follow
---

# CVE-2020-24979

Publication date 4 September 2020

Last updated 4 August 2025

---

Ubuntu priority

**Low**

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

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## Description

Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none.
Reason: This candidate was withdrawn by its CNA. Further investigation
showed that it was not a security issue. Notes: none

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| bison | 20.04 LTS focal | Not affected |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |

---

* [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-2020-24979?format=md#patch-details)

### 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 |
| --- | --- |
| bison | * Upstream:   [bfd851e](https://github.com/akimd/bison/commit/bfd851e2d621734886c66c0af26e861e718510b2) |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24979)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2020-24979)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2020-24979)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2020-24979)

### Other references

* <https://lists.gnu.org/r/bug-bison/2020-08/msg00008.html>
* <https://www.cve.org/CVERecord?id=CVE-2020-24979>