UBUNTU-CVE-2017-7572
- Source
- https://ubuntu.com/security/CVE-2017-7572
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-7572.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2017-7572
- Upstream
- Withdrawn
- 2025-07-18T16:43:56Z
- Published
- 2017-04-06T18:59:00Z
- Modified
- 2025-07-16T07:37:11.281587Z
- Severity
-
- 8.1 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Ubuntu - low
- Summary
- [none]
- Details
-
The _checkPolkitPrivilege function in serviceHelper.py in Back In Time (aka backintime) 1.1.18 and earlier uses a deprecated polkit authorization method (unix-process) that is subject to a race condition (time of check, time of use). With this authorization method, the owner of a process requesting a polkit operation is checked by polkitd via /proc/<pid>/status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.
- References
Affected packages
Ubuntu:18.04:LTS / backintime
Package
- Name
- backintime
- Purl
- pkg:deb/ubuntu/backintime@1.1.12-2?arch=source&distro=bionic
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed1.1.12-2
Ecosystem specific
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "1.1.12-2",
"binary_name": "backintime-common"
},
{
"binary_version": "1.1.12-2",
"binary_name": "backintime-gnome"
},
{
"binary_version": "1.1.12-2",
"binary_name": "backintime-kde"
},
{
"binary_version": "1.1.12-2",
"binary_name": "backintime-qt4"
}
]
}