National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-8649 Detail

Current Description

lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor, of the host's /proc, to access the rest of the host's filesystem via the openat() family of syscalls.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.1 CRITICAL
Vector: AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H (V3 legend)
Impact Score: 6.0
Exploitability Score: 2.3


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 9.0 HIGH
Vector: (AV:N/AC:L/Au:S/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/94498 Third Party Advisory VDB Entry
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465 Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1398242 Issue Tracking Patch
https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c Patch Vendor Advisory
https://security-tracker.debian.org/tracker/CVE-2016-8649 Third Party Advisory VDB Entry

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
1.0.9
 cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
2.0.0
Up to (excluding)
2.0.6


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-8649
NVD Published Date:
05/01/2017
NVD Last Modified:
10/26/2018