What’s Vulnerable › Vulnerabilities

CVE-2009-4242

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2010-01-25 · updated 2026-06-16
• Weakness: CWE-119

Description

Heap-based buffer overflow in the CGIFCodec::GetPacketBuffer function in datatype/image/gif/common/gifcodec.cpp 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, 10.1, and 11.0; Linux RealPlayer 10; and Helix Player 10.x allows remote attackers to execute arbitrary code via a GIF file with crafted chunk sizes that trigger improper memory allocation.

Affected products

• RealNetworks Helix Player: 10.0, 11.0.0, 11.0.1
• RealNetworks Realplayer: 10.0, 10.5, 11.0, 11.0.1, 11.0.2, 11.0.3 (+4)
• RealNetworks Realplayer Enterprise: all versions
• RealNetworks Realplayer Sp: 1.0.0, 1.0.1

References

• http://lists.helixcommunity.org/pipermail/datatype-cvs/2008-September/008633.html
• http://osvdb.org/61966
• http://secunia.com/advisories/38218
• http://secunia.com/advisories/38450
• http://securitytracker.com/id?1023489
• http://service.real.com/realplayer/security/01192010_player/en/
• http://www.redhat.com/support/errata/RHSA-2010-0094.html
• http://www.securityfocus.com/archive/1/509096/100/0/threaded
• http://www.securityfocus.com/bid/37880
• http://www.vupen.com/english/advisories/2010/0178
• http://www.zerodayinitiative.com/advisories/ZDI-10-006/
• https://bugzilla.redhat.com/show_bug.cgi?id=561436

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