{"id":"ALPINE-CVE-2019-20044","details":"In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the --no-PRIVILEGED option. Zsh fails to overwrite the saved uid, so the original privileges can be restored by executing MODULE_PATH=/dir/with/module zmodload with a module that calls setuid().","modified":"2026-03-09T01:15:02.496664Z","published":"2020-02-24T14:15:11.667Z","upstream":["CVE-2019-20044"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2019-20044"}],"affected":[{"package":{"name":"zsh","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/zsh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8-r0"}]}],"versions":["4.3.11-r1","4.3.12-r0","4.3.15-r0","4.3.16-r0","4.3.17-r0","5.0.0-r0","5.0.2-r0","5.0.2-r1","5.0.2-r2","5.0.4-r0","5.0.5-r0","5.0.6-r0","5.0.7-r0","5.0.8-r0","5.0.8-r1","5.1-r0","5.1.1-r0","5.1.1-r1","5.2-r0","5.2-r1","5.2-r2","5.2-r3","5.3.1-r0","5.4.1-r0","5.4.2-r0","5.4.2-r1","5.5-r0","5.5.1-r0","5.5.1-r1","5.6.2-r0","5.7.1-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2019-20044.json"}},{"package":{"name":"zsh","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/zsh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8-r0"}]}],"versions":["4.3.11-r1","4.3.12-r0","4.3.15-r0","4.3.16-r0","4.3.17-r0","5.0.0-r0","5.0.2-r0","5.0.2-r1","5.0.2-r2","5.0.4-r0","5.0.5-r0","5.0.6-r0","5.0.7-r0","5.0.8-r0","5.0.8-r1","5.1-r0","5.1.1-r0","5.1.1-r1","5.2-r0","5.2-r1","5.2-r2","5.2-r3","5.3.1-r0","5.4.1-r0","5.4.2-r0","5.4.2-r1","5.5-r0","5.5.1-r0","5.5.1-r1","5.6.2-r0","5.7.1-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2019-20044.json"}},{"package":{"name":"zsh","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/zsh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8-r0"}]}],"versions":["4.3.11-r1","4.3.12-r0","4.3.15-r0","4.3.16-r0","4.3.17-r0","5.0.0-r0","5.0.2-r0","5.0.2-r1","5.0.2-r2","5.0.4-r0","5.0.5-r0","5.0.6-r0","5.0.7-r0","5.0.8-r0","5.0.8-r1","5.1-r0","5.1.1-r0","5.1.1-r1","5.2-r0","5.2-r1","5.2-r2","5.2-r3","5.3.1-r0","5.4.1-r0","5.4.2-r0","5.4.2-r1","5.5-r0","5.5.1-r0","5.5.1-r1","5.6.2-r0","5.7.1-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2019-20044.json"}},{"package":{"name":"zsh","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/zsh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8-r0"}]}],"versions":["4.3.11-r1","4.3.12-r0","4.3.15-r0","4.3.16-r0","4.3.17-r0","5.0.0-r0","5.0.2-r0","5.0.2-r1","5.0.2-r2","5.0.4-r0","5.0.5-r0","5.0.6-r0","5.0.7-r0","5.0.8-r0","5.0.8-r1","5.1-r0","5.1.1-r0","5.1.1-r1","5.2-r0","5.2-r1","5.2-r2","5.2-r3","5.3.1-r0","5.4.1-r0","5.4.2-r0","5.4.2-r1","5.5-r0","5.5.1-r0","5.5.1-r1","5.6.2-r0","5.7.1-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2019-20044.json"}},{"package":{"name":"zsh","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/zsh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8-r0"}]}],"versions":["4.3.11-r1","4.3.12-r0","4.3.15-r0","4.3.16-r0","4.3.17-r0","5.0.0-r0","5.0.2-r0","5.0.2-r1","5.0.2-r2","5.0.4-r0","5.0.5-r0","5.0.6-r0","5.0.7-r0","5.0.8-r0","5.0.8-r1","5.1-r0","5.1.1-r0","5.1.1-r1","5.2-r0","5.2-r1","5.2-r2","5.2-r3","5.3.1-r0","5.4.1-r0","5.4.2-r0","5.4.2-r1","5.5-r0","5.5.1-r0","5.5.1-r1","5.6.2-r0","5.7.1-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2019-20044.json"}},{"package":{"name":"zsh","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/zsh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8-r0"}]}],"versions":["4.3.11-r1","4.3.12-r0","4.3.15-r0","4.3.16-r0","4.3.17-r0","5.0.0-r0","5.0.2-r0","5.0.2-r1","5.0.2-r2","5.0.4-r0","5.0.5-r0","5.0.6-r0","5.0.7-r0","5.0.8-r0","5.0.8-r1","5.1-r0","5.1.1-r0","5.1.1-r1","5.2-r0","5.2-r1","5.2-r2","5.2-r3","5.3.1-r0","5.4.1-r0","5.4.2-r0","5.4.2-r1","5.5-r0","5.5.1-r0","5.5.1-r1","5.6.2-r0","5.7.1-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2019-20044.json"}},{"package":{"name":"zsh","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/zsh?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8-r0"}]}],"versions":["4.3.11-r1","4.3.12-r0","4.3.15-r0","4.3.16-r0","4.3.17-r0","5.0.0-r0","5.0.2-r0","5.0.2-r1","5.0.2-r2","5.0.4-r0","5.0.5-r0","5.0.6-r0","5.0.7-r0","5.0.8-r0","5.0.8-r1","5.1-r0","5.1.1-r0","5.1.1-r1","5.2-r0","5.2-r1","5.2-r2","5.2-r3","5.3.1-r0","5.4.1-r0","5.4.2-r0","5.4.2-r1","5.5-r0","5.5.1-r0","5.5.1-r1","5.6.2-r0","5.7.1-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/alpine/ALPINE-CVE-2019-20044.json"}},{"package":{"name":"zsh","ecosystem":"Alpine:v3.19","purl":"pkg:apk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