{"id":"USN-3294-1","summary":"bash vulnerabilities","details":"Bernd Dietzel discovered that Bash incorrectly expanded the hostname when\ndisplaying the prompt. If a remote attacker were able to modify a hostname,\nthis flaw could be exploited to execute arbitrary code. This issue only\naffected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10.\n(CVE-2016-0634)\n\nIt was discovered that Bash incorrectly handled the SHELLOPTS and PS4\nenvironment variables. A local attacker could use this issue to execute\narbitrary code with root privileges. This issue only affected Ubuntu 14.04\nLTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7543)\n\nIt was discovered that Bash incorrectly handled the popd command. A remote\nattacker could possibly use this issue to bypass restricted shells.\n(CVE-2016-9401)\n\nIt was discovered that Bash incorrectly handled path autocompletion. A\nlocal attacker could possibly use this issue to execute arbitrary code.\nThis issue only affected Ubuntu 17.04. (CVE-2017-5932)\n","modified":"2026-02-10T04:41:08Z","published":"2017-05-17T17:06:15Z","related":["UBUNTU-CVE-2016-0634","UBUNTU-CVE-2016-7543","UBUNTU-CVE-2016-9401"],"upstream":["CVE-2016-0634","CVE-2016-7543","CVE-2016-9401","UBUNTU-CVE-2016-0634","UBUNTU-CVE-2016-7543","UBUNTU-CVE-2016-9401","UBUNTU-CVE-2017-5932"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3294-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-0634"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-7543"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-9401"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-5932"}],"affected":[{"package":{"name":"bash","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/bash@4.3-7ubuntu1.7?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3-7ubuntu1.7"}]}],"versions":["4.2-5ubuntu3","4.3-1ubuntu2","4.3-2ubuntu1","4.3-3ubuntu1","4.3-4ubuntu1","4.3-4ubuntu2","4.3-6ubuntu1","4.3-7ubuntu1","4.3-7ubuntu1.1","4.3-7ubuntu1.2","4.3-7ubuntu1.3","4.3-7ubuntu1.4","4.3-7ubuntu1.5","4.3-7ubuntu1.6"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.3-7ubuntu1.7","binary_name":"bash"},{"binary_version":"4.3-7ubuntu1.7","binary_name":"bash-builtins"},{"binary_version":"4.3-7ubuntu1.7","binary_name":"bash-static"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:14.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2016-0634"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2016-7543"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"negligible"}],"id":"CVE-2016-9401"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3294-1.json"}},{"package":{"name":"bash","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/bash@4.3-14ubuntu1.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3-14ubuntu1.2"}]}],"versions":["4.3-14ubuntu1","4.3-14ubuntu1.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.3-14ubuntu1.2","binary_name":"bash"},{"binary_version":"4.3-14ubuntu1.2","binary_name":"bash-builtins"},{"binary_version":"4.3-14ubuntu1.2","binary_name":"bash-static"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2016-0634"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2016-7543"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"negligible"}],"id":"CVE-2016-9401"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3294-1.json"}}],"schema_version":"1.7.3"}