CVE-2009-4242
Heap-based buffer overflow in the CGIFCodec::GetPacketBuffer function in datatype/image/gif...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2009-4242- CVSS 2.0
- 9.3 High
AV:N/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2009-4242- Updated
- 2026-11-02
EUVDEUVD-2009-4211 No score
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.
- Record
EUVD-2009-4211- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-x57c-5473-xjq4 No score
Heap-based buffer overflow in the CGIFCodec::GetPacketBuffer function in datatype/image/gif...
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.
- Record
GHSA-x57c-5473-xjq4- Weakness
- CWE-119
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
HelixPlayerRed Hat:enterprise_linux:4::as From an advisory covering 8 CVEs |
before 1:1.0.6-1.el4_8.1 | 1:1.0.6-1.el4_8.1 |
HelixPlayer-debuginfoRed Hat:enterprise_linux:4::as From an advisory covering 8 CVEs |
before 1:1.0.6-1.el4_8.1 | 1:1.0.6-1.el4_8.1 |
HelixPlayerRed Hat:enterprise_linux:4::desktop From an advisory covering 8 CVEs |
before 1:1.0.6-1.el4_8.1 | 1:1.0.6-1.el4_8.1 |
HelixPlayer-debuginfoRed Hat:enterprise_linux:4::desktop From an advisory covering 8 CVEs |
before 1:1.0.6-1.el4_8.1 | 1:1.0.6-1.el4_8.1 |
HelixPlayerRed Hat:enterprise_linux:4::es From an advisory covering 8 CVEs |
before 1:1.0.6-1.el4_8.1 | 1:1.0.6-1.el4_8.1 |
HelixPlayer-debuginfoRed Hat:enterprise_linux:4::es From an advisory covering 8 CVEs |
before 1:1.0.6-1.el4_8.1 | 1:1.0.6-1.el4_8.1 |
HelixPlayerRed Hat:enterprise_linux:4::ws From an advisory covering 8 CVEs |
before 1:1.0.6-1.el4_8.1 | 1:1.0.6-1.el4_8.1 |
HelixPlayer-debuginfoRed Hat:enterprise_linux:4::ws From an advisory covering 8 CVEs |
before 1:1.0.6-1.el4_8.1 | 1:1.0.6-1.el4_8.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-4242 is a high vulnerability (CVSS 9.3) in Realnetworks Helix Player, published January 25, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.45%, the 95th percentile. No source names a fixed version.
References
redhat.com/support/errata/RHSA-2010-0094.html
vupen.com/english/advisories/2010/0178
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10144
exchange.xforce.ibmcloud.com/vulnerabilities/55795
securitytracker.com/id?1023489
bugzilla.redhat.com/show_bug.cgi?id=561436
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lists.helixcommunity.org/pipermail/datatype-cvs/2008-September/008633.html
service.real.com/realplayer/security/01192010_player/en
secunia.com/advisories/38450
zerodayinitiative.com/advisories/ZDI-10-006
osvdb.org/61966
helixcommunity.org/viewcvs/datatype/image/gif/common/gifcodec.cpp?view=log
securityfocus.com/archive/1/509096/100/0/threaded
nvd.nist.gov/vuln/detail/CVE-2009-4242
github.com/advisories/GHSA-x57c-5473-xjq4
access.redhat.com/errata/RHSA-2010:0094
security.access.redhat.com/data/csaf/v2/advisories/2010/rhsa-2010_0094.json
cve.org/CVERecord?id=CVE-2009-4242