JPEG decoder: truncated segments are read past the image buffer, and a zero sampling factor hangs the decode
The GUIX software JPEG decoder reads four kinds of marker segment without checking that each is long enough to hold what it reads. A truncated segment is therefore read past the end of the caller's image buffer. Separately, a zero chroma sampling factor makes the block decode loop non-terminating. Both reproduce in the default configuration, in which `GX_SOFTWARE_DECODER_SUPPORT` is enabled.
CVE-2026-92454
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-92454
Eclipse ThreadX - GUIX
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Eclipse Foundation",
"product": "Eclipse ThreadX - GUIX",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "6.5.1.202602a"
},
{
"status": "unaffected",
"version": "6.5.2.202603"
}
],
"packageName": "GUIX",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-92454
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #42269 · Revision 1
- Added to Heist Feed
- Publisher date