// For flags

CVE-2018-4888

Adobe Reader DC XFA dashDot Use-After-Free Remote Code Execution Vulnerability

Severity Score

8.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in Adobe Acrobat Reader 2018.009.20050 and earlier versions, 2017.011.30070 and earlier versions, 2015.006.30394 and earlier versions. This vulnerability is an instance of a use after free vulnerability. The vulnerability is triggered by a crafted PDF file that can cause a memory access violation exception in the XFA engine because of a dangling reference left as a consequence of freeing an object in the computation that manipulates internal nodes in a graph representation of a document object model used in XFA. Successful exploitation could lead to arbitrary code execution.

Se ha descubierto un problema en Adobe Acrobat Reader 2018.009.20050 y anteriores, 2017.011.30070 y anteriores y 2015.006.30394 y anteriores. Esta vulnerabilidad es un ejemplo de una vulnerabilidad de uso de memoria previamente liberada. La vulnerabilidad se desencadena por medio de un archivo RDF manipulado que puede provocar una excepción de violación de acceso en el motor XFA debido a una referencia pendiente que queda como consecuencia de liberar un objeto en el cálculo que manipula nodos internos en una representación gráfica de un modelo de objeto de documento empleado en XFA. La explotación con éxito de esta vulnerabilidad podría permitir la ejecución arbitraria de código.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Acrobat Reader DC. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the processing of XFA forms in PDF documents. A crafted dashDot attribute in an XFA form can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process.

*Credits: Sebastian Apeltsiberas
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-01-03 CVE Reserved
  • 2018-02-23 CVE Published
  • 2024-02-07 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Adobe
Search vendor "Adobe"
Acrobat
Search vendor "Adobe" for product "Acrobat"
>= 17.0 <= 17.011.30070
Search vendor "Adobe" for product "Acrobat" and version " >= 17.0 <= 17.011.30070"
-
Affected
Adobe
Search vendor "Adobe"
Acrobat Dc
Search vendor "Adobe" for product "Acrobat Dc"
<= 18.009.20050
Search vendor "Adobe" for product "Acrobat Dc" and version " <= 18.009.20050"
continuous
Affected
Adobe
Search vendor "Adobe"
Acrobat Dc
Search vendor "Adobe" for product "Acrobat Dc"
>= 15.0 <= 15.006.30394
Search vendor "Adobe" for product "Acrobat Dc" and version " >= 15.0 <= 15.006.30394"
classic
Affected
Adobe
Search vendor "Adobe"
Acrobat Reader
Search vendor "Adobe" for product "Acrobat Reader"
>= 17.0 <= 17.011.30070
Search vendor "Adobe" for product "Acrobat Reader" and version " >= 17.0 <= 17.011.30070"
-
Affected
Adobe
Search vendor "Adobe"
Acrobat Reader Dc
Search vendor "Adobe" for product "Acrobat Reader Dc"
<= 18.009.20050
Search vendor "Adobe" for product "Acrobat Reader Dc" and version " <= 18.009.20050"
continuous
Affected
Adobe
Search vendor "Adobe"
Acrobat Reader Dc
Search vendor "Adobe" for product "Acrobat Reader Dc"
>= 15.0 <= 15.006.30394
Search vendor "Adobe" for product "Acrobat Reader Dc" and version " >= 15.0 <= 15.006.30394"
classic
Affected