PYSEC-2017-152
Vulnerability from pysec - Published: 2017-09-21 21:29 - Updated: 2026-05-21 14:54A 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.
| Name | purl | instack | pkg:pypi/instack |
|---|
{
"affected": [
{
"ecosystem_specific": {},
"package": {
"ecosystem": "PyPI",
"name": "instack",
"purl": "pkg:pypi/instack"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "7.2.0"
},
{
"last_affected": "6.1.0"
},
{
"last_affected": "5.3.0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.0.9.dev4",
"5.0.0",
"5.0.0.0b1",
"5.0.0.0b2",
"5.1.0"
]
}
],
"aliases": [
"CVE-2017-7549"
],
"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.",
"id": "PYSEC-2017-152",
"modified": "2026-05-21T14:54:30.554896Z",
"published": "2017-09-21T21:29:00.447Z",
"references": [
{
"type": "ADVISORY",
"url": "http://www.securityfocus.com/bid/100407"
},
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2017:2557"
},
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2017:2649"
},
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2017:2687"
},
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2017:2693"
},
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2017:2726"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1477403"
}
],
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N",
"type": "CVSS_V3"
}
]
}
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