{"id":"ALPINE-CVE-2018-6556","details":"lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn't otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2.","modified":"2026-07-08T04:31:22.018442053Z","published":"2018-08-10T15:29:01.297Z","upstream":["CVE-2018-6556"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2018-6556"}],"affected":[{"package":{"name":"lxc","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-6556.json"}},{"package":{"name":"lxc","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/lxc?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.1.1-r9"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conve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