High severity · published Feb 17, 2017
CVE-2016-6252
Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap
7.8
CVSS
0.4%
EPSS
No
On KEV
Description
Integer overflow in shadow 4.2.1 allows local users to gain privileges via crafted input to newuidmap.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SH
Shadow · Shadow Project
4.2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6252
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6252
www.debian.org
http://www.debian.org/security/2017/dsa-3793
Mailing List
http://www.openwall.com/lists/oss-security/2016/07/19/6
Mailing List
http://www.openwall.com/lists/oss-security/2016/07/19/7
Mailing List
http://www.openwall.com/lists/oss-security/2016/07/20/2
Mailing List
http://www.openwall.com/lists/oss-security/2016/07/25/7
Third Party Advisory
http://www.securityfocus.com/bid/92055
More from Shadow
9.8
CVE-2017-12424
In shadow before 4.5, the newusers tool could be made to manipulate internal data structures in ways unintended by the authors
7.8
CVE-2019-19882
shadow 4.8, in certain circumstances affecting at least Gentoo, Arch Linux, and Void Linux, allows local users to obtain root access because setuid programs are misconfigured
5.3
CVE-2018-7169
An issue was discovered in shadow 4.5
3.3
CVE-2023-29383
In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn (change finger)