{"id":"GHSA-53wm-97p6-582f","summary":"instack-undercloud vulnerable to symlink attack on tmp files","details":"A flaw was found in instack-undercloud 7.2.0 as packaged in Red Hat OpenStack Platform Pike, 6.1.0 as packaged in Red Hat OpenStack Platform Oacta, 5.3.0 as packaged in Red Hat OpenStack Newton, where pre-install and security policy scripts used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files.","aliases":["CVE-2017-7549","PYSEC-2017-152","PYSEC-2026-645"],"modified":"2026-07-06T08:11:25.423894871Z","published":"2022-05-13T01:07:33Z","database_specific":{"cwe_ids":["CWE-377","CWE-59"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2024-04-22T22:48:23Z","nvd_published_at":"2017-09-21T21:29:00Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-7549"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2017:2557"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2017:2649"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2017:2687"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2017:2693"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2017:2726"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2017-7549"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1477403"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/instack/PYSEC-2017-152.yaml"},{"type":"WEB","url":"https://opendev.org/openstack/instack-undercloud"},{"type":"WEB","url":"https://web.archive.org/web/20170907040549/http://www.securityfocus.com/bid/100407"},{"type":"WEB","url":"http://www.securityfocus.com/bid/100407"}],"affected":[{"package":{"name":"instack-undercloud","ecosystem":"PyPI","purl":"pkg:pypi/instack-undercloud"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"7.2.0"}]}],"versions":["4.0.1.dev90","4.1.0","4.2.0","4.2.1","5.0.0","5.0.0.0b1","5.0.0.0b2","5.0.0.0b3","5.0.0.0rc1","5.0.0.0rc2","5.0.0.0rc3","5.1.0","5.2.0","5.3.0","5.3.1","5.3.10","5.3.2","5.3.3","5.3.4","5.3.5","5.3.6","5.3.7","5.3.8","5.3.9","6.0.0","6.0.0.0b2","6.0.0.0rc1","6.0.0.0rc2","6.1.0","6.1.1","6.1.2","6.1.3","6.1.4","6.1.5","6.1.6","6.1.7","6.1.8","7.0.0","7.0.0.0b1","7.1.0","7.2.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-53wm-97p6-582f/GHSA-53wm-97p6-582f.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N"}]}