Bug 2405115 (CVE-2025-11679) - CVE-2025-11679 libwebsockets: Out-of-bounds Read in libwebsockets PNG parsing
Summary: CVE-2025-11679 libwebsockets: Out-of-bounds Read in libwebsockets PNG parsing
Keywords:
Status: NEW
Alias: CVE-2025-11679
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2405213 2405214 2405215 2405216 2405217
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-20 17:23 UTC by OSIDB Bzimport
Modified: 2025-10-20 20:55 UTC (History)
11 users (show)

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

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Description OSIDB Bzimport 2025-10-20 17:23:22 UTC 
Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to read past a heap allocated buffer possibly causing a crash, when the user visits an attacker controlled website that contains a crafted PNG file with a big height dimension.
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