A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in ChunkAssignData() in mux/muxinternal.c.
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2021:4231 https://access.redhat.com/errata/RHSA-2021:4231
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):