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cve[email protected]CVE-2016-1575
HistoryMay 02, 2016 - 10:59 a.m.

CVE-2016-1575

2016-05-0210:59:23
CWE-269
web.nvd.nist.gov
94
cve-2016-1575
linux kernel
overlayfs
posix acl
xattr
privilege escalation
nvd

7.2 High

CVSS2

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

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

7.2 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.1%

The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory.

Affected configurations

NVD
Node
linuxlinux_kernelRange4.5.2
Node
canonicalubuntu_coreMatch15.04
OR
canonicalubuntu_linuxMatch12.04lts
OR
canonicalubuntu_linuxMatch14.04lts
OR
canonicalubuntu_linuxMatch15.10
OR
canonicalubuntu_linuxMatch16.04lts
OR
canonicalubuntu_linuxMatch16.10
OR
canonicalubuntu_touchMatch15.04

7.2 High

CVSS2

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

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

7.2 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.1%