# CVE-2020-7040: storebackup: storeBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname, which allows symlink attacks...

CVE-2020-7040 is fixed in storebackup on 1 platform, first by storebackup 3.2.1-1+deb8u1build0.18.04.1, released January 21, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-7040
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0287
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 21, 2020

## 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.)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | storebackup Ubuntu 18.04.6 LTS (bionic) | 3.2.1-1+deb8u1build0.18.04.1 | [storebackup 3.2.1-1+deb8u1build0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-storebackup-3.2.1-1-deb8u1build0.18.04.1.md) | Jan 21, 2020 |
| Linux | storebackup Ubuntu 20.04 LTS (focal) | 3.2.1-1+deb8u1build0.20.04.1 | [storebackup 3.2.1-1+deb8u1build0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-storebackup-3.2.1-1-deb8u1build0.20.04.1.md) | Jan 21, 2020 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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