ID

VAR-201001-0745

CVE

CVE-2009-4245

TITLE

Realnetworks RealPlayer Heap-based buffer overflow vulnerability

DESCRIPTION

Heap-based buffer overflow in RealNetworks RealPlayer 10, RealPlayer 10.5 6.0.12.1040 through 6.0.12.1741, RealPlayer 11 11.0.0 through 11.0.4, RealPlayer Enterprise, Mac RealPlayer 10 and 10.1, Linux RealPlayer 10, and Helix Player 10.x allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a compressed GIF file, related to gifcodec.cpp and gifimage.cpp. Realnetworks RealPlayer Contains a heap-based buffer overflow vulnerability.Compressed by a third party GIF Via files, you may be affected by a heap-based buffer overflow. RealPlayer SP, RealPlayer, and Helix Player are prone to multiple remote vulnerabilities, including heap- and stack-based buffer-overflow issues. A remote attacker could exploit these issues by crafting a file and enticing an unsuspecting user to open it using a vulnerable application. Successful exploits will allow the attacker to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition. The following are vulnerable: RealPlayer SP 1.0.0 through 1.0.1 RealPlayer 11 11.0.0 through 11.0.5 RealPlayer 10.5 6.0.12.1040 through 6.0.12.163, 6.0.12.1675, 6.0.12.1698, and 6.0.12.1741 RealPlayer 10 and 10.1 Helix Player 11.0.0 through 11.0.2. ---------------------------------------------------------------------- Secunia integrated with Microsoft WSUS http://secunia.com/blog/71/ ---------------------------------------------------------------------- TITLE: RealPlayer Multiple Vulnerabilities SECUNIA ADVISORY ID: SA38218 VERIFY ADVISORY: http://secunia.com/advisories/38218/ DESCRIPTION: Some vulnerabilities have been reported in RealPlayer, which can be exploited by malicious people to compromise a vulnerable system. 3) A vulnerability is caused due to an unspecified error related to HTTP chunk encoding. 8) An unspecified error related to the RealPlayer ASM RuleBook can be exploited to cause an "array overflow". 10) Two vulnerabilities are caused due to errors within the processing of Internet Video Recording (IVR) files. Please see the vendor's advisory for details. http://service.real.com/realplayer/security/01192010_player/en/ PROVIDED AND/OR DISCOVERED BY: The vendor credits: * Evgeny Legerov * anonymous persons working with iDEFENSE Labs * John Rambo and anonymous researchers working with TippingPoint's Zero Day Initiative ORIGINAL ADVISORY: http://service.real.com/realplayer/security/01192010_player/en/ OTHER REFERENCES: SA33810: http://secunia.com/advisories/33810/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. For more information: SA38218 SOLUTION: Updated packages are available via Red Hat Network. iDefense Security Advisory 02.01.10 http://labs.idefense.com/intelligence/vulnerabilities/ Feb 01, 2010 I. BACKGROUND RealPlayer is an application for playing various media formats, developed by RealNetworks Inc. Since late 2003, Real Player has been based on the open-source Helix Player. More information can be found at the URLs shown. For more information, see the vendor's site found at the following links. http://www.real.com/realplayer.html http://helixcommunity.org/ II. The vulnerability occurs in the CGIFCodec::InitDecompress() function, which does not properly validate a field in the GIF file before using it in an arithmetic operation that calculates the size of a heap buffer. This issue leads to heap corruption, which can result in the execution of arbitrary code. III. An attacker would need to entice a victim into opening a RTSP stream. Upon the victim opening the stream, the attack would inject a malformed compressed GIF image into a RTSP stream to exploit this issue. Other attack vectors are likely to exist; however, this was the vector tested within iDefense Labs. It should be noted that RealPlayer can be instantiated within a Web browser. This means an attacker could host a malicious Web page and entice a victim into visiting this page. Upon visiting the page, exploitation would occur. IV. DETECTION iDefense confirmed RealPlayer version 11 is vulnerable to this issue. WORKAROUND iDefense recommends applying the following workarounds until a patch resolving this issue is made publicly available by Real Networks Inc. RealPlayer users should change the GIF filetype association to another application. It is also recommended that RealPlayer users disable the RealPlayer plugins contained within the Web browsers plugins directory by changing the file permissions to deny execution of these files. These workarounds will limit the functionality of RealPlayer by disabling GIF support and web browser plugin features. These workarounds may not mitigate all exploitation vectors but will likely prevent the majority of likely scenarios. VI. VENDOR RESPONSE RealNetworks has released a patch which addresses this issue. Information about downloadable vendor updates can be found by clicking on the URLs shown. http://service.real.com/realplayer/security/01192010_player/en/ VII. CVE INFORMATION The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2009-4245 to this issue. This is a candidate for inclusion in the CVE list (http://cve.mitre.org/), which standardizes names for security problems. VIII. DISCLOSURE TIMELINE 05/13/2008 Initial Contact 05/03/2008 Initial Response 02/01/2010 Coordinated public disclosure. IX. CREDIT The discoverer of this vulnerability wishes to remain anonymous. Get paid for vulnerability research http://labs.idefense.com/methodology/vulnerability/vcp.php Free tools, research and upcoming events http://labs.idefense.com/ X. LEGAL NOTICES Copyright \xa9 2010 iDefense, Inc. Permission is granted for the redistribution of this alert electronically. It may not be edited in any way without the express written consent of iDefense. If you wish to reprint the whole or any part of this alert in any other medium other than electronically, please e-mail customerservice@idefense.com for permission. Disclaimer: The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

buffer overflow

CONFIGURATIONS

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Evgeny Legerov, anonymous researchers working with iDEFENSE Labs, John Rambo, Peter Vreugdenhil working with TippingPoint's Zero Day Initiative, and anonymous researchers working with TippingPoint's Zero Day Initiative

SOURCES

LAST UPDATE DATE

2025-04-11T22:54:24.059000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE