CVE-2016-8649
LXC Filesystem Escalation
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.
INFO
Published Date :
May 1, 2017, 6:59 a.m.
Last Modified :
April 20, 2025, 1:37 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.0 | CRITICAL | [email protected] |
Solution
- Update the LXC packages to a non-vulnerable version.
- Reboot the system if required by the update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2016-8649.
| URL | 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 |
| 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 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-8649 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2016-8649
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-8649 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-8649 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/94498 Added Reference https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465 Added Reference https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1398242 Added Reference https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c Added Reference https://security-tracker.debian.org/tracker/CVE-2016-8649 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Oct. 26, 2018
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:* versions up to (including) 1.0.8 *cpe:2.3:a:linuxcontainers:lxc:2.0.0:*:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc10:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc11:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc12:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc13:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc14:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc15:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc2:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc3:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc4:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc5:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc6:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc7:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc8:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc9:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.1:*:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.2:*:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.3:*:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.4:*:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.5:*:*:*:*:*:*:* OR *cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.9 *cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (excluding) 2.0.6 -
Initial Analysis by [email protected]
May. 16, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:S/C:C/I:C/A:C) Added CVSS V3 AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Changed Reference Type https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465 No Types Assigned https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465 Third Party Advisory Changed Reference Type https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345 No Types Assigned https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345 Third Party Advisory Changed Reference Type https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c No Types Assigned https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c Patch, Vendor Advisory Changed Reference Type https://security-tracker.debian.org/tracker/CVE-2016-8649 No Types Assigned https://security-tracker.debian.org/tracker/CVE-2016-8649 Third Party Advisory, VDB Entry Changed Reference Type http://www.securityfocus.com/bid/94498 No Types Assigned http://www.securityfocus.com/bid/94498 Third Party Advisory, VDB Entry Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1398242 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1398242 Issue Tracking, Patch Added CWE CWE-264 Added CPE Configuration OR *cpe:2.3:a:linuxcontainers:lxc:1.0.8:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:linuxcontainers:lxc:2.0.0:*:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc10:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc11:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc12:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc13:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc14:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc15:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc2:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc3:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc4:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc5:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc6:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc7:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc8:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.0:rc9:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.1:*:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.2:*:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.3:*:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.4:*:*:*:*:*:*:* *cpe:2.3:a:linuxcontainers:lxc:2.0.5:*:*:*:*:*:*:*
Vulnerability Scoring Details
Base CVSS Score: 9.1
Base CVSS Score: 9
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.15 }} -2.31%
score
0.82743
percentile