Integer overflow in Shadow Project
CVE-2016-6252
Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (32.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Shadow Project — versions 4.2.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openwall.com/lists/oss-security/2016/07/19/7 (mailing-list, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/92055 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201706-02 (vendor-advisory)
- github.com/shadow-maint/shadow/issues/27 (Patch, Third Party Advisory, Issue Tracking)
- bugzilla.suse.com/show_bug.cgi (Patch, Issue Tracking)
- www.openwall.com/lists/oss-security/2016/07/25/7 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/07/19/6 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/07/20/2 (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2017/dsa-3793 (vendor-advisory)
Frequently asked questions
- What is CVE-2016-6252?
- CVE-2016-6252 is a high-severity vulnerability in Shadow Project, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2017-02-17.
- How severe is CVE-2016-6252?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2016-6252 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.