Skip to content
CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2025-11679

Out-of-bounds Read in libwebsockets PNG parsing

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Nozomi

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

warmcat libwebsockets

Default version status: unaffected

  • 4.0 to ≤ 4.4.2affected
  • 4.0 to ≤ 4.3.6affected

References