Digital media delivery firm RealNetworks has shipped a high-prority patch to cover four gaping holes in its flagship RealPlayer software, warning that the vulnerabilities could put users at risk of code execution attacks.
The patch comes a few hours after Secunia released an advisory warning for one of the vulnerabilities, a heap-based buffer overflow caused by a design error within RealPlayer's handling of frames in Shockwave Flash (SWF) files.
According to RealNetworks, at least one of the four bugs affects all platforms -- Windows, Mac OS X and Linux.
Details are only available for these two vulnerabilities:
- CVE-2008-1309: The RealAudioObjects.RealAudio ActiveX control in rmoc3260.dll 220.127.116.11 in RealNetworks RealPlayer 11.0.1 build 18.104.22.1684 does not properly manage memory for the Console property, which allows remote attackers to execute arbitrary code or cause a denial of service (browser crash) via a series of assignments of long string values, which triggers an overwrite of freed heap memory. CVSS Base Score 9.3.
- CVE-2007-5400: The vulnerability is caused due to a design error within the handling of frames in Shockwave Flash (SWF) files and can be exploited to cause a heap-based buffer overflow. Successful exploitation may allow execution of arbitrary code.
In its advisory, RealNetworks also lists CVE-2008-1309, a RealPlayer ActiveX controls property heap memory corruption; and CVE-2008-3064, a local resource reference vulnerability.