{"id":"ALPINE-CVE-2019-20795","details":"iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library configuration) may block exploitability.","modified":"2025-12-03T22:47:45.025333Z","published":"2020-05-09T21:15:10.913Z","upstream":["CVE-2019-20795"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2019-20795"}],"affected":[{"package":{"name":"iproute2","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/iproute2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.20.0-r2"}]}],"versions":["2.6.28-r0","2.6.29.1-r0","2.6.31-r0","2.6.31-r1","2.6.33-r0","2.6.33-r1","2.6.34-r0","2.6.35-r0","2.6.35-r1","2.6.35-r2","2.6.35-r3","2.6.37-r0","2.6.38-r0","2.6.38-r1","3.10.0-r0","3.11.0-r0","3.12.0-r0","3.14.0-r0","3.15.0-r0","3.18.0-r0","3.2.0-r0","3.3.0-r0","3.4.0-r0","3.5.1-r0","3.6.0-r0","3.7.0-r0","3.9.0-r0","4.10.0-r0","4.10.0-r1","4.12.0-r0","4.13.0-r0","4.17.0-r0","4.19.0-r0","4.2.0-r0","4.20.0-r0","4.20.0-r1","4.4.0-r0","4.4.0-r1","4.6.0-r1","4.6.0-r2","4.7.0-r0","4.9.0-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-20795.json"}},{"package":{"name":"iproute2","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/iproute2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.1.0-r0"}]}],"versions":["2.6.28-r0","2.6.29.1-r0","2.6.31-r0","2.6.31-r1","2.6.33-r0","2.6.33-r1","2.6.34-r0","2.6.35-r0","2.6.35-r1","2.6.35-r2","2.6.35-r3","2.6.37-r0","2.6.38-r0","2.6.38-r1","3.10.0-r0","3.11.0-r0","3.12.0-r0","3.14.0-r0","3.15.0-r0","3.18.0-r0","3.2.0-r0","3.3.0-r0","3.4.0-r0","3.5.1-r0","3.6.0-r0","3.7.0-r0","3.9.0-r0","4.10.0-r0","4.10.0-r1","4.12.0-r0","4.13.0-r0","4.17.0-r0","4.19.0-r0","4.2.0-r0","4.20.0-r0","4.20.0-r1","4.4.0-r0","4.4.0-r1","4.6.0-r1","4.6.0-r2","4.7.0-r0","4.9.0-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-20795.json"}},{"package":{"name":"iproute2","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/iproute2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.1.0-r0"}]}],"versions":["2.6.28-r0","2.6.29.1-r0","2.6.31-r0","2.6.31-r1","2.6.33-r0","2.6.33-r1","2.6.34-r0","2.6.35-r0","2.6.35-r1","2.6.35-r2","2.6.35-r3","2.6.37-r0","2.6.38-r0","2.6.38-r1","3.10.0-r0","3.11.0-r0","3.12.0-r0","3.14.0-r0","3.15.0-r0","3.18.0-r0","3.2.0-r0","3.3.0-r0","3.4.0-r0","3.5.1-r0","3.6.0-r0","3.7.0-r0","3.9.0-r0","4.10.0-r0","4.10.0-r1","4.12.0-r0","4.13.0-r0","4.17.0-r0","4.19.0-r0","4.2.0-r0","4.20.0-r0","4.20.0-r1","4.4.0-r0","4.4.0-r1","4.6.0-r1","4.6.0-r2","4.7.0-r0","4.9.0-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-20795.json"}},{"package":{"name":"iproute2","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/iproute2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.1.0-r0"}]}],"versions":["2.6.28-r0","2.6.29.1-r0","2.6.31-r0","2.6.31-r1","2.6.33-r0","2.6.33-r1","2.6.34-r0","2.6.35-r0","2.6.35-r1","2.6.35-r2","2.6.35-r3","2.6.37-r0","2.6.38-r0","2.6.38-r1","3.10.0-r0","3.11.0-r0","3.12.0-r0","3.14.0-r0","3.15.0-r0","3.18.0-r0","3.2.0-r0","3.3.0-r0","3.4.0-r0","3.5.1-r0","3.6.0-r0","3.7.0-r0","3.9.0-r0","4.10.0-r0","4.10.0-r1","4.12.0-r0","4.13.0-r0","4.17.0-r0","4.19.0-r0","4.2.0-r0","4.20.0-r0","4.20.0-r1","4.4.0-r0","4.4.0-r1","4.6.0-r1","4.6.0-r2","4.7.0-r0","4.9.0-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-20795.json"}},{"package":{"name":"iproute2","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/iproute2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.1.0-r0"}]}],"versions":["2.6.28-r0","2.6.29.1-r0","2.6.31-r0","2.6.31-r1","2.6.33-r0","2.6.33-r1","2.6.34-r0","2.6.35-r0","2.6.35-r1","2.6.35-r2","2.6.35-r3","2.6.37-r0","2.6.38-r0","2.6.38-r1","3.10.0-r0","3.11.0-r0","3.12.0-r0","3.14.0-r0","3.15.0-r0","3.18.0-r0","3.2.0-r0","3.3.0-r0","3.4.0-r0","3.5.1-r0","3.6.0-r0","3.7.0-r0","3.9.0-r0","4.10.0-r0","4.10.0-r1","4.12.0-r0","4.13.0-r0","4.17.0-r0","4.19.0-r0","4.2.0-r0","4.20.0-r0","4.20.0-r1","4.4.0-r0","4.4.0-r1","4.6.0-r1","4.6.0-r2","4.7.0-r0","4.9.0-r0"],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2019-20795.json"}},{"package":{"name":"iproute2","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/iproute2?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.1.0-r0"}]}],"versions":["2.6.28-r0","2.6.29.1-r0","2.6.31-r0","2.6.31-r1","2.6.33-r0","2.6.33-r1","2.6.34-r0","2.6.35-r0","2.6.35-r1","2.6.35-r2","2.6.35-r3","2.6.37-r0","2.6.38-r0","2.6.38-r1","3.10.0-r0","3.11.0-r0","3.12.0-r0","3.14.0-r0","3.15.0-r0","3.18.0-r0","3.2.0-r0","3.3.0-r0","3.4.0-r0","3.5.1-r0","3.6.0-r0","3.7.0-r0","3.9.0-r0","4.10.0-r0","4.10.0-r1","4.12.0-r0","4.13.0-r0","4.17.0-r0","4.19.0-r0","4.2.0-r0"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