CVE-2009-4242

critical
Published 2010-01-25 ยท Modified 2026-04-29
CVSS v3
โ€”
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
9.3

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.

Predictions

Exploit likelihood
20%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

macos macOS Fixed 1 release
VersionStatusFixed in
โ€” Not affected โ€”

Application impact

VendorProductVersionsFixed
realnetworksrealplayer11.0.1
realnetworksrealplayer_sp1.0.0
realnetworkshelix_player10.0
realnetworkshelix_player11.0.1
realnetworksrealplayer11.0.2
realnetworksrealplayer10.0
realnetworksrealplayer10.5
realnetworksrealplayer11.0
realnetworksrealplayer11.0.3
realnetworksrealplayer11.0.0
realnetworkshelix_player11.0.0
realnetworksrealplayer_sp1.0.1
realnetworksrealplayer11.0.4
realnetworksrealplayer_enterprise
realnetworksrealplayer10.1
realnetworksrealplayer11.0.5

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.