CVE-2016-6252

2017-02-1700:00:00

ubuntu.com

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%

JSON

Integer overflow in shadow 4.2.1 allows local users to gain privileges via
crafted input to newuidmap.

Bugs

Notes

Author	Note
leosilva	shadow version for precise-esm and vivid/ubuntu-core doesn’t use newuidmap binaries neither does any privileged access that makes this fix necessary.

OSVersionArchitecturePackageVersionFilename
ubuntu14.04noarchshadow< 1:4.1.5.1-1ubuntu9.4UNKNOWN
ubuntu16.04noarchshadow< 1:4.2-3.1ubuntu5.2UNKNOWN
ubuntu16.10noarchshadow< 1:4.2-3.2ubuntu1.16.10.1UNKNOWN
ubuntu17.04noarchshadow< 1:4.2-3.2ubuntu1.17.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	14.04	noarch	shadow	< 1:4.1.5.1-1ubuntu9.4	UNKNOWN
ubuntu	16.04	noarch	shadow	< 1:4.2-3.1ubuntu5.2	UNKNOWN
ubuntu	16.10	noarch	shadow	< 1:4.2-3.2ubuntu1.16.10.1	UNKNOWN
ubuntu	17.04	noarch	shadow	< 1:4.2-3.2ubuntu1.17.04.1	UNKNOWN