# CVE-2019-14855: dirmngr: A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm

CVE-2019-14855 is fixed in 17 products on 1 platform, first by dirmngr 2.2.4-1ubuntu1.3, released March 20, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-14855
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0108
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 20, 2020

## Description

A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm. An attacker could use this weakness to create forged certificate signatures. This issue affects GnuPG versions before 2.2.18.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | dirmngr Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [dirmngr 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-dirmngr-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gnupg Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gnupg 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gnupg-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gnupg-agent Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gnupg-agent 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gnupg-agent-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gnupg-l10n Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gnupg-l10n 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gnupg-l10n-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gnupg-utils Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gnupg-utils 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gnupg-utils-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gnupg2 Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gnupg2 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gnupg2-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gpg Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gpg 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gpg-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gpg-agent Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gpg-agent 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gpg-agent-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gpg-wks-client Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gpg-wks-client 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gpg-wks-client-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gpg-wks-server Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gpg-wks-server 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gpg-wks-server-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gpgconf Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gpgconf 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gpgconf-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gpgsm Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gpgsm 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gpgsm-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gpgv Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gpgv 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gpgv-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gpgv-static Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gpgv-static 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gpgv-static-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gpgv-win32 Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gpgv-win32 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gpgv-win32-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | gpgv2 Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [gpgv2 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gpgv2-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |
| Linux | scdaemon Ubuntu 18.04.6 LTS (bionic) | 2.2.4-1ubuntu1.3 | [scdaemon 2.2.4-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-scdaemon-2.2.4-1ubuntu1.3.md) | Mar 20, 2020 |

---

Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.