CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.5	$0-$5k	0.00

A vulnerability classified as very critical was found in RealNetworks RealPlayer (Multimedia Player Software). This vulnerability affects an unknown code. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Unspecified vulnerability in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 allows remote attackers to execute arbitrary code via an invalid codec name.

The weakness was presented 11/24/2011 by Alexander Gavrun (iDefense) with Zero Day Initiative (Website). The advisory is available at service.real.com. This vulnerability was named CVE-2011-4255. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/26/2021). It is expected to see the exploit prices for this product decreasing in the near future.

The vulnerability scanner Nessus provides a plugin with the ID 57025 (RealPlayer for Windows < 15.0.0 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119341 (RealNetworks RealPlayer Multiple Vulnerabilities).

Upgrading to version 10.0 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11661.

The vulnerability is also documented in the databases at X-Force (71382) and Tenable (57025). See 59525, 59524, 59523 and 59522 for similar entries.

Productinfo

Type

• Multimedia Player Software

Vendor

• RealNetworks

Name

• RealPlayer

License

• free

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 57025
Nessus Name: RealPlayer for Windows < 15.0.0 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902761
OpenVAS Name: RealNetworks RealPlayer Multiple Vulnerabilities Nov - 11 (Mac OS X)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: RealPlayer 10.0
TippingPoint: 🔍

Timelineinfo

11/01/2011 🔍
11/21/2011 +20 days 🔍
11/24/2011 +3 days 🔍
11/24/2011 +0 days 🔍
11/24/2011 +0 days 🔍
11/28/2011 +4 days 🔍
03/23/2015 +1211 days 🔍
11/26/2021 +2440 days 🔍

Sourcesinfo

Vendor: realnetworks.com

Advisory: service.real.com
Researcher: Alexander Gavrun (iDefense)
Organization: Zero Day Initiative
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-4255 (🔍)
X-Force: 71382
Vulnerability Center: 33942 - RealPlayer<15.0.0 Mac RealPlayer <12.0.0.1703 Remote Code Execution via an Invalid Codec Name, High
SecurityFocus: 50741 - Real Networks RealPlayer Versions Prior to 15.0.0 Multiple Remote Vulnerabilities

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/26/2021 20:14
Changes: 03/23/2015 16:50 (62), 04/05/2017 14:57 (11), 11/26/2021 20:07 (3), 11/26/2021 20:14 (1)
Complete: 🔍

Discussion

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