storeBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname…
Priority MEDIUM 41CWE-59Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.)
Why it matters now
EPSS 0.02868 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:storebackup:storebackup:*:*:*:*:*:*:*:* | up to 3.5 | Vulnerable | Storebackup |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:a:opensuse:backports_sle:15.0:*:*:*:*:*:*:* | 15.0 | Vulnerable | openSUSE |
| cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* | 15.0 sp1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | 15.1 | Vulnerable | openSUSE |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* | 20.04 | Vulnerable | Canonical |
- cpe:2.3:a:storebackup:storebackup:*:*:*:*:*:*:*:* Versions up to 3.5 Vulnerable ·Storebackup
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:a:opensuse:backports_sle:15.0:*:*:*:*:*:*:* Versions 15.0 Vulnerable ·openSUSE
- cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* Versions 15.0 sp1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* Versions 20.04 Vulnerable ·Canonical
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-7040
- 2026-10-03 Alias added: GHSA-gc95-jc79-5q6h
References
Patch 1
Advisory 9
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-7040
- http://www.openwall.com/lists/oss-security/2020/01/20/3
- [oss-security] CVE-2020-7040: storeBackup: denial of service and symlink attack vector via fixed lockfile path /tmp/storeBackup.lock
- [oss-security] 20200121 Re: CVE-2020-7040: storeBackup: denial of service and symlink attack vector via fixed lockfile path /tmp/storeBackup.lock
- [oss-security] 20200122 Re: CVE-2020-7040: storeBackup: denial of service and symlink attack vector via fixed lockfile path /tmp/storeBackup.lock
- [oss-security] 20200122 Re: CVE-2020-7040: storeBackup: denial of service and symlink attack vector via fixed lockfile path /tmp/storeBackup.lock
- [oss-security] 20200123 Re: CVE-2020-7040: storeBackup: denial of service and symlink attack vector via fixed lockfile path /tmp/storeBackup.lock
- [debian-lts-announce] 20200205 [SECURITY] [DLA 2095-1] storebackup security update
- USN-4508-1
Sources
- CVE-2020-7040 · CVE Program
- CVE-2020-7040 · NVD
- FIRST EPSS
- GHSA-gc95-jc79-5q6h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences