// For flags

CVE-2011-2948

RealNetworks RealPlayer SWF DefineFont Remote Code Execution Vulnerability

Severity Score

9.3
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

RealNetworks RealPlayer 11.0 through 11.1 and 14.0.0 through 14.0.5, RealPlayer SP 1.0 through 1.1.5, RealPlayer Enterprise 2.0 through 2.1.5, and Mac RealPlayer 12.0.0.1569 do not properly handle DEFINEFONT fields in SWF files, which allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted file.

RealNetworks RealPlayer v11.0 a v11.1 y v14.0.0 a v14.0.5, RealPlayer SP v1.0 a v1.1.5, RealPlayer Enterprise v2.0 a v2.1.5 y Mac RealPlayer v12.0.0.1569 no gestionan adecuadamente los campos DEFINEFONT en los archivos SWF, lo que permite ejecutar código arbitrario o causar una denegación de servicio (corrupción de memoria heap) a atacantes remotos a través de un archivo debidamente modificado.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of RealNetworks RealPlayer. 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 way RealPlayer handles DEFINEFONT fields in Flash Files. When the process parses corrupt a ShapeRecord with the DefineFont record it reads outside a stack buffer and uses a random stack value as a heap pointer. Later this pointer will be used to write data into. The resulting corruption can lead to remote code execution under the context of the current user.

*Credits: Luigi Auriemma
CVSS Scores
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2011-07-27 CVE Reserved
  • 2011-08-16 CVE Published
  • 2024-08-06 CVE Updated
  • 2024-09-03 EPSS 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
Realnetworks
Search vendor "Realnetworks"
Realplayer
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11.0
Search vendor "Realnetworks" for product "Realplayer" and version "11.0"
-
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
11.1
Search vendor "Realnetworks" for product "Realplayer" and version "11.1"
-
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
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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"
14.0.2
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.2"
-
Affected
Realnetworks
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Realplayer
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14.0.3
Search vendor "Realnetworks" for product "Realplayer" and version "14.0.3"
-
Affected
Realnetworks
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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
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Realplayer Sp
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1.0.0
Search vendor "Realnetworks" for product "Realplayer Sp" and version "1.0.0"
-
Affected
Realnetworks
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Realplayer Sp
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1.0.1
Search vendor "Realnetworks" for product "Realplayer Sp" and version "1.0.1"
-
Affected
Realnetworks
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Realplayer Sp
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1.0.2
Search vendor "Realnetworks" for product "Realplayer Sp" and version "1.0.2"
-
Affected
Realnetworks
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Realplayer Sp
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1.0.5
Search vendor "Realnetworks" for product "Realplayer Sp" and version "1.0.5"
-
Affected
Realnetworks
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Realplayer Sp
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1.1
Search vendor "Realnetworks" for product "Realplayer Sp" and version "1.1"
-
Affected
Realnetworks
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Realplayer Sp
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1.1.1
Search vendor "Realnetworks" for product "Realplayer Sp" and version "1.1.1"
-
Affected
Realnetworks
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Realplayer Sp
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1.1.2
Search vendor "Realnetworks" for product "Realplayer Sp" and version "1.1.2"
-
Affected
Realnetworks
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Realplayer Sp
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1.1.3
Search vendor "Realnetworks" for product "Realplayer Sp" and version "1.1.3"
-
Affected
Realnetworks
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Realplayer Sp
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1.1.4
Search vendor "Realnetworks" for product "Realplayer Sp" and version "1.1.4"
-
Affected
Realnetworks
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Realplayer Sp
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1.1.5
Search vendor "Realnetworks" for product "Realplayer Sp" and version "1.1.5"
-
Affected
Realnetworks
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Realplayer
Search vendor "Realnetworks" for product "Realplayer"
2.0
Search vendor "Realnetworks" for product "Realplayer" and version "2.0"
enterprise
Affected
Realnetworks
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Realplayer
Search vendor "Realnetworks" for product "Realplayer"
2.1.2
Search vendor "Realnetworks" for product "Realplayer" and version "2.1.2"
enterprise
Affected
Realnetworks
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Realplayer
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2.1.3
Search vendor "Realnetworks" for product "Realplayer" and version "2.1.3"
enterprise
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
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2.1.4
Search vendor "Realnetworks" for product "Realplayer" and version "2.1.4"
enterprise
Affected
Realnetworks
Search vendor "Realnetworks"
Realplayer
Search vendor "Realnetworks" for product "Realplayer"
2.1.5
Search vendor "Realnetworks" for product "Realplayer" and version "2.1.5"
enterprise
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