shadow: TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees
Priority LOW 21CWE-367Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
shadow: TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees
Why it matters now
EPSS 0.00307 23rd percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
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 |
|---|---|---|---|---|---|
| shadow | shadow | 1 | — | No fix listed | CNA |
- shadow Vendorshadow Affected 1 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:debian:shadow:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:fedoraproject:fedora:16:*:*:*:*:*:*:* | 16 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:17:*:*:*:*:*:*:* | 17 | Vulnerable | Fedoraproject |
| cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:* | 5 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
- cpe:2.3:a:debian:shadow:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:fedoraproject:fedora:16:*:*:*:*:*:*:* Versions 16 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:17:*:*:*:*:*:*:* Versions 17 Vulnerable ·Fedoraproject
- cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:* Versions 5 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2013-4235
- 2026-10-03 Alias added: GHSA-2q3w-h8mm-q9v3
References
Advisory 4
Sources
- CVE-2013-4235 · CVE Program
- CVE-2013-4235 · NVD
- FIRST EPSS
- GHSA-2q3w-h8mm-q9v3 · GitHub Advisory Database · CC BY 4.0
- CVE-2013-4235 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences