# CVE-2019-18276: bash: The bash packages provide Bash (Bourne-again shell), which is the default shell for Red Hat Enterprise Linux.  Securi...

CVE-2019-18276 is fixed in 4 products on 1 platform, first by bash 4.4.18-2ubuntu1.3, released November 27, 2019. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2019-18276
- Priority: High
- CVSS: 7.8 (Low)
- EPSS: 0.0261
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 27, 2019

## Description

The bash packages provide Bash (Bourne-again shell), which is the default shell for Red Hat Enterprise Linux.  Security Fix(es):  * bash: when effective UID is not equal to its real UID the saved UID is not dropped (CVE-2019-18276)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Additional Changes:  For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bash RHEL 8 | 0:4.4.19-14.el8 | [RHSA-2021:1679](https://patchblox.com/security/data/fix/linux/rhsa-2021-1679.md) | May 18, 2021 |
| Linux | bash Ubuntu 18.04.6 LTS (bionic) | 4.4.18-2ubuntu1.3 | [bash 4.4.18-2ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bash-4.4.18-2ubuntu1.3.md) | Nov 27, 2019 |
| Linux | bash Ubuntu 20.04 LTS (focal) | 5.0-6ubuntu1.2 | [bash 5.0-6ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-bash-5.0-6ubuntu1.2.md) | Nov 27, 2019 |
| Linux | bash ol 8 | 0:4.4.19-14.el8 | [ELSA-2021-1679](https://patchblox.com/security/data/fix/linux/elsa-2021-1679.md) | May 25, 2021 |
| Linux | bash-builtins Ubuntu 18.04.6 LTS (bionic) | 4.4.18-2ubuntu1.3 | [bash-builtins 4.4.18-2ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bash-builtins-4.4.18-2ubuntu1.3.md) | Nov 27, 2019 |
| Linux | bash-builtins Ubuntu 20.04 LTS (focal) | 5.0-6ubuntu1.2 | [bash-builtins 5.0-6ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-bash-builtins-5.0-6ubuntu1.2.md) | Nov 27, 2019 |
| Linux | bash-doc RHEL 8 | 0:4.4.19-14.el8 | [RHSA-2021:1679](https://patchblox.com/security/data/fix/linux/rhsa-2021-1679.md) | May 18, 2021 |
| Linux | bash-doc ol 8 | 0:4.4.19-14.el8 | [ELSA-2021-1679](https://patchblox.com/security/data/fix/linux/elsa-2021-1679.md) | May 25, 2021 |
| Linux | bash-static Ubuntu 18.04.6 LTS (bionic) | 4.4.18-2ubuntu1.3 | [bash-static 4.4.18-2ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bash-static-4.4.18-2ubuntu1.3.md) | Nov 27, 2019 |
| Linux | bash-static Ubuntu 20.04 LTS (focal) | 5.0-6ubuntu1.2 | [bash-static 5.0-6ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-bash-static-5.0-6ubuntu1.2.md) | Nov 27, 2019 |

---

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.