TippingPoint Zero Day Initiative

RealPlayer RA Field Size File Processing Heap Overflow Vulnerability

ZDI-07-063: October 31st, 2007

CVE ID

Affected Vendors

Affected Products

    RealPlayer

Vulnerability Details

This vulnerability allows remote attackers to execute code on vulnerable installations of RealPlayer. User interaction is required in that a user must open a malicious .ra/.ram file or visit a malicious web site.

The specific flaw exists during the parsing of files with improperly defined size field in the RA header. Specifying a large unsigned value data can trigger a heap corruption and further result in arbitrary code execution under the context of the logged in user.

Vendor Response

RealNetworks has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2007-02-16 - Vulnerability reported to vendor
    2007-10-31 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous