EUVD-2026-78417
GHSA-f22f-r8xp-wr6f
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Primary rating from Vendor (redhat) · only source for this CVE.
CVSS VectorVendor: redhat
Lifecycle Timeline
2DescriptionCVE.org
A flaw was found in GNOME Shell. When processing icons from a remote search provider via D-Bus, the system fails to validate the icon's declared dimensions against the actual data buffer size. A malicious or compromised remote search provider could exploit this by providing oversized icon dimensions, leading to an out-of-bounds read. This can cause the GNOME Shell process to crash, disrupting the user's session, and potentially disclose sensitive information from adjacent memory.
AnalysisAI
GNOME Shell fails to validate the declared dimensions of icons returned by a remote search provider over D-Bus against the actual icon data buffer, producing an out-of-bounds read when an oversized size is supplied. A malicious or compromised search provider registered in a user's session can crash the shell — terminating the desktop session — and may leak fragments of adjacent shell memory. …
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External POC / Exploit Code
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