CVE-2016-8655
Linux 4.4.0 < 4.4.0-53 - 'AF_PACKET chocobo_root' Local Privilege Escalation
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
5
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Race condition in net/packet/af_packet.c in the Linux kernel through 4.8.12 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging the CAP_NET_RAW capability to change a socket version, related to the packet_set_ring and packet_setsockopt functions.
Condición de carrera en net/packet/af_packet.c en el kernel de Linux hasta la versión 4.8.12 permite a usuarios locales obtener privilegios o provocar una denegación de servicio (uso después de liberación de memoria) aprovechando la capacidad CAP_NET_RAW de cambiar una versión socket, relacionado con las funciones packet_set_ring y packet_setsockopt.
A race condition issue leading to a use-after-free flaw was found in the way the raw packet sockets implementation in the Linux kernel networking subsystem handled synchronization while creating the TPACKET_V3 ring buffer. A local user able to open a raw packet socket (requires the CAP_NET_RAW capability) could use this flaw to elevate their privileges on the system.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
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
- 2016-12-06 CVE Published
- 2016-12-08 First Exploit
- 2023-03-08 EPSS Updated
- 2024-08-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
- CWE-416: Use After Free
CAPEC
References (38)
| URL | Tag | Source |
|---|---|---|
| http://packetstormsecurity.com/files/140063/Linux-Kernel-4.4.0-AF_PACKET-Race-Condition-Privilege-Escalation.html | Third Party Advisory |
|
| http://www.openwall.com/lists/oss-security/2016/12/06/1 | Mailing List |
|
| http://www.securityfocus.com/bid/94692 | Third Party Advisory | |
| http://www.securitytracker.com/id/1037403 | Third Party Advisory | |
| http://www.securitytracker.com/id/1037968 | Third Party Advisory | |
| https://source.android.com/security/bulletin/2017-03-01.html | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://www.exploit-db.com/exploits/44696 | 2024-08-06 | |
| https://www.exploit-db.com/exploits/40871 | 2024-08-06 | |
| https://www.exploit-db.com/exploits/47170 | 2018-12-29 | |
| https://github.com/LakshmiDesai/CVE-2016-8655 | 2016-12-08 | |
| https://github.com/KosukeShimofuji/CVE-2016-8655 | 2016-12-12 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.2 < 3.2.85 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 3.2.85" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.3 < 3.10.106 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.3 < 3.10.106" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.11 < 3.12.69 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.11 < 3.12.69" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.13 < 3.16.40 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.13 < 3.16.40" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.17 < 3.18.46 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.17 < 3.18.46" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.19 < 4.1.37 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.1.37" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.2 < 4.4.38 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 4.4.38" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.5 < 4.8.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.5 < 4.8.14" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.10" | - |
Affected
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