Improper Input Validation Affecting docker-bash-completion package, versions <18.09.6_ce-6.17.1

Note: Versions mentioned in the description apply only to the upstream docker-bash-completion package and not the docker-bash-completion package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

In Go before 1.10.6 and 1.11.x before 1.11.3, the "go get" command is vulnerable to directory traversal when executed with the import path of a malicious Go package which contains curly braces (both '{' and '}' characters). Specifically, it is only vulnerable in GOPATH mode, but not in module mode (the distinction is documented at https://golang.org/cmd/go/#hdr-Module_aware_go_get). The attacker can cause an arbitrary filesystem write, which can lead to code execution.

• https://www.suse.com/security/cve/CVE-2018-16874.html
• https://bugzilla.suse.com/1118897
• https://bugzilla.suse.com/1118898
• https://bugzilla.suse.com/1118899
• http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00044.html
• http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00060.html
• http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00011.html
• http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00015.html
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00010.html
• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html
• http://www.securityfocus.com/bid/106228
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16874
• https://groups.google.com/forum/?pli=1#!topic/golang-announce/Kw31K8G7Fi0
• https://lists.debian.org/debian-lts-announce/2021/03/msg00014.html
• https://lists.debian.org/debian-lts-announce/2021/03/msg00015.html
• https://security.gentoo.org/glsa/201812-09
• https://groups.google.com/forum/?pli=1#%21topic/golang-announce/Kw31K8G7Fi0