// For flags

CVE-2011-4256

RealNetworks RealPlayer RV30 Uninitialized Index Value Remote Code Execution Vulnerability

Severity Score

10.0
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The RV30 codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 does not initialize an unspecified index value, which allows remote attackers to execute arbitrary code via unknown vectors.

El codec RV30 en RealNetworks RealPlayer anterior a v15.0.0 y Mac RealPlayer anterior a v12.0.0.1703 no se inicializa un valor de índice especificado, lo que permite a atacantes remotos ejecutar código arbitrario a través de vectores desconocidos.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of RealNetworks Real Player. 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 how the application parses sample data encoded with the RV30 codec. When parsing this sample data, the application will make an allocation and then fail to completely initialize the buffer. During decoding of the sample data, the application will explicitly trust an index from the partially filled buffer and then use that to calculate an address to write to. This can lead to memory corruption which can be converted into code execution under the context of the application.

*Credits: Damian Put
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2011-11-01 CVE Reserved
  • 2011-11-24 CVE Published
  • 2024-09-16 CVE Updated
  • 2024-09-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-94: Improper Control of Generation of Code ('Code Injection')
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
<= 12.0.0.1701
Search vendor "Realnetworks" for product "Realplayer" and version " <= 12.0.0.1701"
mac_os
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
7.0
Search vendor "Realnetworks" for product "Realplayer" and version "7.0"
mac_os
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
8.0
Search vendor "Realnetworks" for product "Realplayer" and version "8.0"
mac_os
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
10.0
Search vendor "Realnetworks" for product "Realplayer" and version "10.0"
mac_os_x
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
10.0.0.305
Search vendor "Realnetworks" for product "Realplayer" and version "10.0.0.305"
mac_os
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
10.0.0.331
Search vendor "Realnetworks" for product "Realplayer" and version "10.0.0.331"
mac_os
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
10.1
Search vendor "Realnetworks" for product "Realplayer" and version "10.1"
mac_os_x
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
12.0.0.1569
Search vendor "Realnetworks" for product "Realplayer" and version "12.0.0.1569"
mac_os
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
<= 14.0.7
Search vendor "Realnetworks" for product "Realplayer" and version " <= 14.0.7"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
4
Search vendor "Realnetworks" for product "Realplayer" and version "4"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
5
Search vendor "Realnetworks" for product "Realplayer" and version "5"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
6
Search vendor "Realnetworks" for product "Realplayer" and version "6"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
7
Search vendor "Realnetworks" for product "Realplayer" and version "7"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
8
Search vendor "Realnetworks" for product "Realplayer" and version "8"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
10.0
Search vendor "Realnetworks" for product "Realplayer" and version "10.0"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
10.5
Search vendor "Realnetworks" for product "Realplayer" and version "10.5"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.0
Search vendor "Realnetworks" for product "Realplayer" and version "11.0"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.0.1
Search vendor "Realnetworks" for product "Realplayer" and version "11.0.1"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.0.2
Search vendor "Realnetworks" for product "Realplayer" and version "11.0.2"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.0.2.1744
Search vendor "Realnetworks" for product "Realplayer" and version "11.0.2.1744"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.0.2.2315
Search vendor "Realnetworks" for product "Realplayer" and version "11.0.2.2315"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.0.3
Search vendor "Realnetworks" for product "Realplayer" and version "11.0.3"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.0.4
Search vendor "Realnetworks" for product "Realplayer" and version "11.0.4"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.0.5
Search vendor "Realnetworks" for product "Realplayer" and version "11.0.5"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.1
Search vendor "Realnetworks" for product "Realplayer" and version "11.1"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.1.3
Search vendor "Realnetworks" for product "Realplayer" and version "11.1.3"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11_build_6.0.14.748
Search vendor "Realnetworks" for product "Realplayer" and version "11_build_6.0.14.748"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
12.0.0.1444
Search vendor "Realnetworks" for product "Realplayer" and version "12.0.0.1444"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
12.0.0.1548
Search vendor "Realnetworks" for product "Realplayer" and version "12.0.0.1548"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
14.0.0
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.0"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
14.0.1
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.1"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
14.0.1.609
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.1.609"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
14.0.1.633
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.1.633"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
14.0.2
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.2"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
14.0.3
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.3"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
14.0.4
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.4"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
14.0.5
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.5"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
14.0.6
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.6"
-
Affected