Bug 1956856 (CVE-2020-36331) - CVE-2020-36331 libwebp: out-of-bounds read in ChunkAssignData() in mux/muxinternal.c
Summary: CVE-2020-36331 libwebp: out-of-bounds read in ChunkAssignData() in mux/muxint...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-36331
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1962004 1962005 1961601 1961602 1961978 1961979
Blocks: 1940150 1956995
TreeView+ depends on / blocked
 
Reported: 2021-05-04 14:38 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-04-17 21:21 UTC (History)
9 users (show)

Fixed In Version: libwebp 1.0.1
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in libwebp. An out-of-bounds read was found in function ChunkAssignData. The highest threat from this vulnerability is to data confidentiality and to the service availability.
Clone Of:
Environment:
Last Closed: 2021-11-10 01:51:55 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4231 0 None None None 2021-11-09 17:50:23 UTC

Description Guilherme de Almeida Suckevicz 2021-05-04 14:38:36 UTC 
A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in ChunkAssignData() in mux/muxinternal.c.

Reference:
https://bugs.chromium.org/p/webp/issues/detail?id=388
Comment 2 Riccardo Schirone 2021-05-18 10:05:13 UTC 
Upstream patch:
https://chromium.googlesource.com/webm/libwebp/+/be738c6d396fa5a272c1b209be4379a7532debfe
Comment 7 errata-xmlrpc 2021-11-09 17:50:21 UTC 
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
Comment 8 Product Security DevOps Team 2021-11-10 01:51:53 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-36331
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