CVE-2020-7040
Publication date 21 January 2020
Last updated 25 August 2025
Ubuntu priority
Description
storeBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname, which allows symlink attacks that possibly lead to privilege escalation. (Local users can also create a plain file named /tmp/storeBackup.lock to block use of storeBackup until an admin manually deletes that file.)
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| storebackup | 20.04 LTS focal |
Fixed 3.2.1-1+deb8u1build0.20.04.1
|
| 18.04 LTS bionic |
Fixed 3.2.1-1+deb8u1build0.18.04.1
|
|
| 16.04 LTS xenial |
Fixed 3.2.1-1+deb8u1build0.16.04.1
|
|
| 14.04 LTS trusty | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
8.1 · High
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-4508-1
- StoreBackup vulnerability
- 16 September 2020