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[email protected]NVD:CVE-2016-2856

HistoryMar 14, 2016 - 1:59 a.m.

CVE-2016-2856

2016-03-1401:59:04

CWE-264

[email protected]

web.nvd.nist.gov

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

8.4

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.7

Confidence

High

EPSS

0.002

Percentile

55.7%

JSON

pt_chown in the glibc package before 2.19-18+deb8u4 on Debian jessie; the elibc package before 2.15-0ubuntu10.14 on Ubuntu 12.04 LTS and before 2.19-0ubuntu6.8 on Ubuntu 14.04 LTS; and the glibc package before 2.21-0ubuntu4.2 on Ubuntu 15.10 and before 2.23-0ubuntu1 on Ubuntu 16.04 LTS and 16.10 lacks a namespace check associated with file-descriptor passing, which allows local users to capture keystrokes and spoof data, and possibly gain privileges, via pts read and write operations, related to debian/sysdeps/linux.mk. NOTE: this is not considered a vulnerability in the upstream GNU C Library because the upstream documentation has a clear security recommendation against the --enable-pt_chown option.

Affected configurations

Nvd

Node

canonicalubuntu_linuxMatch12.04lts

canonicalubuntu_linuxMatch14.04lts

canonicalubuntu_linuxMatch15.10

Node

debiandebian_linuxMatch8.0

AND

gnuglibcRange≤2.18

VendorProductVersionCPE
canonicalubuntu_linux12.04cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
canonicalubuntu_linux14.04cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonicalubuntu_linux15.10cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
debiandebian_linux8.0cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
gnuglibc*cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
canonical	ubuntu_linux	12.04	cpe:2.3:o:canonical:ubuntu_linux:12.04::::lts:::
canonical	ubuntu_linux	14.04	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
canonical	ubuntu_linux	15.10	cpe:2.3:o:canonical:ubuntu_linux:15.10:::::::*
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*
gnu	glibc	*	cpe:2.3:a:gnu:glibc::::::::