{"id":"UBUNTU-CVE-2017-9462","details":"In Mercurial before 4.1.3, \"hg serve --stdio\" allows remote authenticated users to launch the Python debugger, and consequently execute arbitrary code, by using --debugger as a repository name.","modified":"2025-09-08T16:44:17Z","published":"2017-06-06T21:29:00Z","upstream":["CVE-2017-9462"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-9462"},{"type":"REPORT","url":"https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.1.3_.282017-4-18.29"},{"type":"REPORT","url":"https://www.mercurial-scm.org/repo/hg/rev/77eaf9539499"},{"type":"REPORT","url":"https://bugs.debian.org/861243"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-9462"}],"affected":[{"package":{"name":"mercurial","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/mercurial@2.8.2-1ubuntu1.4?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.2-1ubuntu1.4"}]}],"versions":["2.6.3-1","2.7.2-1","2.8.1-2","2.8.2-1ubuntu1","2.8.2-1ubuntu1.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.8.2-1ubuntu1.4","binary_name":"mercurial"},{"binary_version":"2.8.2-1ubuntu1.4","binary_name":"mercurial-common"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9462.json"}},{"package":{"name":"mercurial","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/mercurial@3.7.3-1ubuntu1.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.7.3-1ubuntu1.1"}]}],"versions":["3.4-1ubuntu2","3.6.2-1ubuntu2","3.7.3-1ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.7.3-1ubuntu1.1","binary_name":"mercurial"},{"binary_version":"3.7.3-1ubuntu1.1","binary_name":"mercurial-common"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-9462.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}