Bug 2539174 - CVE-2026-63420 OpenImageIO: OpenImageIO: Denial of Service due to out-of-bounds read in PSD image processing [fedora-43]
Summary: CVE-2026-63420 OpenImageIO: OpenImageIO: Denial of Service due to out-of-boun...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: OpenImageIO
Version: 43
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Richard Shaw
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["92f73d67-3b14-4f4b-aefb-a...
Depends On:
Blocks: CVE-2026-63420
TreeView+ depends on / blocked
 
Reported: 2026-09-23 08:32 UTC by Vladimir Vasilev
Modified: 2026-09-23 08:32 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Vladimir Vasilev 2026-09-23 08:32:23 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, An indexed psd with transparency metadata creates fewer stored channel_buffers than the spec.nchannels value advertised by the rawcolor path. when oiio:rawcolor or psd:rawdata is enabled, psdinput::read_native_scanline() passes spec.nchannels to psdinput::interleave_row(), which indexes beyond channel_buffers, resulting in a heap out-of-bounds read and process crash. The affected implementation is identified by src/psd.imageio/psdinput.cpp, PSDInput::read_native_scanline(), PSDInput::interleave_row(), oiio:RawColor, psd:RawData, channel_buffers, and spec.nchannels, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1.


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