- Vulnerability/
- USN-5179-1
USN-5179-1: BusyBox vulnerabilities
First published: Tue Dec 07 2021(Updated: )
It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or automated system were tricked into processing a specially crafted gzip archive, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-28831) It was discovered that BusyBox incorrectly handled certain malformed LZMA archives. If a user or automated system were tricked into processing a specially crafted LZMA archive, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly leak sensitive information. (CVE-2021-42374) Vera Mens, Uri Katz, Tal Keren, Sharon Brizinov, and Shachar Menashe discovered that BusyBox incorrectly handled certain awk patterns. If a user or automated system were tricked into processing a specially crafted awk pattern, a remote attacker could use this issue to cause BusyBox to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-42378, CVE-2021-42379, CVE-2021-42380, CVE-2021-42381, CVE-2021-42382, CVE-2021-42384, CVE-2021-42385, CVE-2021-42386)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/busybox | <1:1.30.1-6ubuntu3.1 | 1:1.30.1-6ubuntu3.1 |
| =21.10 | ||
| All of | ||
| ubuntu/busybox-initramfs | <1:1.30.1-6ubuntu3.1 | 1:1.30.1-6ubuntu3.1 |
| =21.10 | ||
| All of | ||
| ubuntu/busybox-static | <1:1.30.1-6ubuntu3.1 | 1:1.30.1-6ubuntu3.1 |
| =21.10 | ||
| All of | ||
| ubuntu/busybox | <1:1.30.1-6ubuntu2.1 | 1:1.30.1-6ubuntu2.1 |
| =21.04 | ||
| All of | ||
| ubuntu/busybox-initramfs | <1:1.30.1-6ubuntu2.1 | 1:1.30.1-6ubuntu2.1 |
| =21.04 | ||
| All of | ||
| ubuntu/busybox-static | <1:1.30.1-6ubuntu2.1 | 1:1.30.1-6ubuntu2.1 |
| =21.04 | ||
| All of | ||
| ubuntu/busybox | <1:1.30.1-4ubuntu6.4 | 1:1.30.1-4ubuntu6.4 |
| =20.04 | ||
| All of | ||
| ubuntu/busybox-initramfs | <1:1.30.1-4ubuntu6.4 | 1:1.30.1-4ubuntu6.4 |
| =20.04 | ||
| All of | ||
| ubuntu/busybox-static | <1:1.30.1-4ubuntu6.4 | 1:1.30.1-4ubuntu6.4 |
| =20.04 | ||
| All of | ||
| ubuntu/busybox | <1:1.27.2-2ubuntu3.4 | 1:1.27.2-2ubuntu3.4 |
| =18.04 | ||
| All of | ||
| ubuntu/busybox-initramfs | <1:1.27.2-2ubuntu3.4 | 1:1.27.2-2ubuntu3.4 |
| =18.04 | ||
| All of | ||
| ubuntu/busybox-static | <1:1.27.2-2ubuntu3.4 | 1:1.27.2-2ubuntu3.4 |
| =18.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2021-28831
- https://ubuntu.com/security/CVE-2021-42378
- https://ubuntu.com/security/CVE-2021-42386
- https://ubuntu.com/security/CVE-2021-42385
- https://ubuntu.com/security/CVE-2021-42382
- https://ubuntu.com/security/CVE-2021-42384
- https://ubuntu.com/security/CVE-2021-42379
- https://ubuntu.com/security/CVE-2021-42374
- https://ubuntu.com/security/CVE-2021-42380
- https://ubuntu.com/security/CVE-2021-42381
- https://ubuntu.com/security/notices/USN-5179-2
- https://ubuntu.com/security/notices/USN-6335-1
- https://launchpad.net/ubuntu/+source/busybox/1:1.30.1-6ubuntu3.1
- https://launchpad.net/ubuntu/+source/busybox/1:1.30.1-6ubuntu2.1
- https://launchpad.net/ubuntu/+source/busybox/1:1.30.1-4ubuntu6.4
- https://launchpad.net/ubuntu/+source/busybox/1:1.27.2-2ubuntu3.4
- https://ubuntu.com/security/notices/USN-5179-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What are the vulnerabilities addressed in USN-5179-1?
The vulnerabilities addressed in USN-5179-1 are CVE-2021-28831, CVE-2021-42378, and CVE-2021-42386.
What is the impact of CVE-2021-28831?
CVE-2021-28831 could allow a remote attacker to cause a denial of service or possibly execute arbitrary code.
How can I fix the vulnerabilities in BusyBox?
To fix the vulnerabilities in BusyBox, you should update the software to version 1:1.30.1-6ubuntu3.1 or later.
Which versions of Ubuntu are affected by these vulnerabilities?
The vulnerabilities affect Ubuntu 21.10, 21.04, 20.04, and 18.04.
Where can I find more information about these vulnerabilities?
You can find more information about these vulnerabilities at the following links: [CVE-2021-28831](https://ubuntu.com/security/CVE-2021-28831), [CVE-2021-42378](https://ubuntu.com/security/CVE-2021-42378), and [CVE-2021-42386](https://ubuntu.com/security/CVE-2021-42386).
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