CVE-2016-8649
Ubuntu Security Notice USN-3136-1
Severity Score
9.1
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
lxc-attach en LXC entre las versiones 1.0.9 y 2.x hasta la versión 2.0.6 permite que un atacante dentro de un contenedor sin privilegios, utilice un descriptor de archivo heredado de la carpeta /proc del host para acceder al resto del sistema de archivos del host a través de llamadas al sistema openat().
Roman Fiedler discovered a directory traversal flaw in lxc-attach. An attacker with access to an LXC container could exploit this flaw to access files outside of the container.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2016-10-12 CVE Reserved
- 2016-11-24 CVE Published
- 2024-08-06 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-264: Permissions, Privileges, and Access Controls
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/94498 | Third Party Advisory | |
| 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://security-tracker.debian.org/tracker/CVE-2016-8649 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1398242 | 2018-10-26 | |
| https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c | 2018-10-26 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linuxcontainers Search vendor "Linuxcontainers" | Lxc Search vendor "Linuxcontainers" for product "Lxc" | < 1.0.9 Search vendor "Linuxcontainers" for product "Lxc" and version " < 1.0.9" | - |
Affected
| ||||||
| Linuxcontainers Search vendor "Linuxcontainers" | Lxc Search vendor "Linuxcontainers" for product "Lxc" | >= 2.0.0 < 2.0.6 Search vendor "Linuxcontainers" for product "Lxc" and version " >= 2.0.0 < 2.0.6" | - |
Affected
| ||||||