CVE-2016-2856

2016-03-1300:00:00

ubuntu.com

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

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.

OSVersionArchitecturePackageVersionFilename
ubuntu12.04noarcheglibc< 2.15-0ubuntu10.14UNKNOWN
ubuntu14.04noarcheglibc< 2.19-0ubuntu6.8UNKNOWN
ubuntu15.10noarchglibc< 2.21-0ubuntu4.2UNKNOWN