# CVE-2019-1000020: bsdtar: The libarchive programming library can create and read several different streaming archive formats, including GNU tar...

CVE-2019-1000020 is fixed in 6 products on 1 platform, first by bsdcpio 3.2.2-3.1ubuntu0.3, released February 3, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-1000020
- Priority: Routine
- CVSS: 6.5 (Moderate)
- EPSS: 0.0320
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 3, 2019

## Description

The libarchive programming library can create and read several different streaming archive formats, including GNU tar, cpio, and ISO 9660 CD-ROM images. Libarchive is used notably in the bsdtar utility, scripting language bindings such as python-libarchive, and several popular desktop file managers.  Security Fix(es):  * libarchive: Double free in RAR decoder resulting in a denial of service (CVE-2018-1000877)  * libarchive: Use after free in RAR decoder resulting in a denial of service (CVE-2018-1000878)  * libarchive: Out of bounds read in archive_read_support_format_7zip.c resulting in a denial of service (CVE-2019-1000019)  * libarchive: Infinite recursion in archive_read_support_format_iso9660.c resulting in denial of service (CVE-2019-1000020)  * libarchive: Out-of-bounds read in lha_read_data_none (CVE-2017-14503)  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 8.1 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bsdcpio Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.3 | [bsdcpio 3.2.2-3.1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bsdcpio-3.2.2-3.1ubuntu0.3.md) | Feb 3, 2019 |
| Linux | bsdtar RHEL 8 | 0:3.3.2-7.el8 | [RHSA-2019:3698](https://patchblox.com/security/data/fix/linux/rhsa-2019-3698.md) | Nov 5, 2019 |
| Linux | bsdtar Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.3 | [bsdtar 3.2.2-3.1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-bsdtar-3.2.2-3.1ubuntu0.3.md) | Feb 3, 2019 |
| Linux | bsdtar ol 8 | 0:3.3.2-7.el8 | [ELSA-2019-3698](https://patchblox.com/security/data/fix/linux/elsa-2019-3698.md) | Nov 14, 2019 |
| Linux | libarchive RHEL 8 | 0:3.3.2-7.el8 | [RHSA-2019:3698](https://patchblox.com/security/data/fix/linux/rhsa-2019-3698.md) | Nov 5, 2019 |
| Linux | libarchive ol 8 | 0:3.3.2-7.el8 | [ELSA-2019-3698](https://patchblox.com/security/data/fix/linux/elsa-2019-3698.md) | Nov 14, 2019 |
| Linux | libarchive-devel RHEL 8 | 0:3.3.2-7.el8 | [RHSA-2019:3698](https://patchblox.com/security/data/fix/linux/rhsa-2019-3698.md) | Nov 5, 2019 |
| Linux | libarchive-devel ol 8 | 0:3.3.2-7.el8 | [ELSA-2019-3698](https://patchblox.com/security/data/fix/linux/elsa-2019-3698.md) | Nov 14, 2019 |
| Linux | libarchive-tools Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.3 | [libarchive-tools 3.2.2-3.1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libarchive-tools-3.2.2-3.1ubuntu0.3.md) | Feb 3, 2019 |
| Linux | libarchive13 Ubuntu 18.04.6 LTS (bionic) | 3.2.2-3.1ubuntu0.3 | [libarchive13 3.2.2-3.1ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libarchive13-3.2.2-3.1ubuntu0.3.md) | Feb 3, 2019 |

---

Data as of 2026-11-08T00:53:09Z 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.