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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (22.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Shadow — versions 1
- Debian Linux — versions 8.0, 9.0, 10.0
- Debian Shadow
- Fedoraproject Fedora — versions 16, 17
- Red Hat Enterprise Linux — versions 5, 6.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-tracker.debian.org/tracker/CVE-2013-4235 (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- access.redhat.com/security/cve/cve-2013-4235 (Third Party Advisory)
- lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac… (mailing-list)
- security.gentoo.org/glsa/202210-26 (vendor-advisory, Third Party Advisory)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
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.