Vulnerability in Shadow
CVE-2013-4235
shadow: TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
EPSS: 0.003 (22.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Shadow — versions 1
- Debian Debian_linux — versions 8.0, 9.0, 10.0
- Debian Shadow
- Fedoraproject Fedora — versions 16, 17
- Redhat Enterprise_linux — versions 5, 6.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Third Party Advisory)
- secalert@redhat.com (Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Third Party Advisory)
- secalert@redhat.com (mailing-list)
- secalert@redhat.com (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2013-4235?
- CVE-2013-4235 is a medium-severity vulnerability in Shadow, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 4.7/10. Published 2019-12-03.
- How severe is CVE-2013-4235?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2013-4235 known to be exploited?
- 23 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.