The Alpine Linux project is pleased to announce the immediate
availability of version 3.11.13, 3.12.9 and 3.13.7  of its Alpine
Linux operating system.

https://git.alpinelinux.org/aports/log/?h=v3.11.13
https://git.alpinelinux.org/aports/log/?h=v3.12.9
https://git.alpinelinux.org/aports/log/?h=v3.13.7

Those releases include various security fixes for busybox:

- https://security.alpinelinux.org/vuln/CVE-2021-42374
- https://security.alpinelinux.org/vuln/CVE-2021-42375
- https://security.alpinelinux.org/vuln/CVE-2021-42378
- https://security.alpinelinux.org/vuln/CVE-2021-42379
- https://security.alpinelinux.org/vuln/CVE-2021-42380
- https://security.alpinelinux.org/vuln/CVE-2021-42381
- https://security.alpinelinux.org/vuln/CVE-2021-42382
- https://security.alpinelinux.org/vuln/CVE-2021-42383
- https://security.alpinelinux.org/vuln/CVE-2021-42384
- https://security.alpinelinux.org/vuln/CVE-2021-42385
- https://security.alpinelinux.org/vuln/CVE-2021-42386