{"id":"ALPINE-CVE-2018-20679","details":"An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.","modified":"2026-06-09T21:31:29.994196982Z","published":"2019-01-09T16:29:00.273Z","upstream":["CVE-2018-20679"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2018-20679"}],"affected":[{"package":{"name":"busybox","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r10"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-20679.json"}},{"package":{"name":"busybox","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/busybox?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29.3-r1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