// For flags

CVE-2014-7912

(Mobile Pwn2Own) Google Android DHCP Parsing Remote Code Execution Vulnerability

Severity Score

6.8
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The get_option function in dhcp.c in dhcpcd before 6.2.0, as used in dhcpcd 5.x in Android before 5.1 and other products, does not validate the relationship between length fields and the amount of data, which allows remote DHCP servers to execute arbitrary code or cause a denial of service (memory corruption) via a large length value of an option in a DHCPACK message.

Vulnerabilidad en la función get_option en dhcp.c en las versiones de dhcpcd anteriores a la 6.2.0, usado en dhcpcd 5.x, en Android en versiones anteriores a la 5.1 y otros productos, no valida la relación entre la longitud de los campos y la cantidad de datos, lo cual permite a servidores DHCP remotos ejecutar código arbitrario o causar una denegación de servicio (corrupción de memoria) a través de un valor de grán longitud de una opción en un mensaje DHCPACK.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Google Android. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the parsing of the DHCP options in a DHCP ACK packet. The vulnerability is triggered when the LENGTH of an option, when added to the current read position, exceeds the actual length of the DHCP options buffer. An attacker can leverage this vulnerability to execute code on the device.

*Credits: Jüri Aedla
CVSS Scores
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2014-10-06 CVE Reserved
  • 2015-03-12 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Dhcpcd Project
Search vendor "Dhcpcd Project"
 Dhcpcd
Search vendor "Dhcpcd Project" for product "Dhcpcd"
 <= 6.1.0
Search vendor "Dhcpcd Project" for product "Dhcpcd" and version " <= 6.1.0"
-
Affected
in Google
Search vendor "Google"
 Android
Search vendor "Google" for product "Android"
*-
Safe