#VU45144 Heap-based buffer overflow in RealPlayer - CVE-2011-1525

Vulnerability identifier: #VU45144

Vulnerability risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2011-1525

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
RealPlayer
Client/Desktop applications / Multimedia software

Vendor: RealNetworks

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heap-based buffer overflow in rvrender.dll in RealNetworks RealPlayer 11.0 through 11.1 and 14.0.0 through 14.0.2, and RealPlayer SP 1.0 through 1.1.5,. A remote attacker can use a crafted frame in an Internet Video Recording to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

RealPlayer: 4 - 14.0.1.609

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External links
https://aluigi.org/adv/real_5-adv.txt
https://osvdb.org/71260
https://secunia.com/advisories/43847
https://securityreason.com/securityalert/8181
https://service.real.com/realplayer/security/04122011_player/en/
https://www.exploit-db.com/exploits/17019
https://www.securityfocus.com/archive/1/517083/100/0/threaded
https://www.securityfocus.com/bid/46946
https://www.securitytracker.com/id?1025245
https://exchange.xforce.ibmcloud.com/vulnerabilities/66209

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.