Bug 1547349 – CVE-2018-6406 libwebm: Out of bounds read in libwebm_util.cc:ParseVP9SuperFrameIndex() can lead to information leak or potential denial of service

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Bug 1547349 - (CVE-2018-6406) CVE-2018-6406 libwebm: Out of bounds read in libwebm_util.cc:ParseVP9SuperFrameIndex() can lead to information leak or potential denial of service

Summary:	CVE-2018-6406 libwebm: Out of bounds read in libwebm_util.cc:ParseVP9SuperFra...

Status:	NEW

Aliases:	CVE-2018-6406

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=moderate,public=20180130,repor...
Keywords:	Security

Depends On:	1547350 1547351
Blocks:	1547356
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Reported:	2018-02-20 22:59 EST by Sam Fowler
Modified:	2018-03-01 02:07 EST (History)
CC List:	3 users (show)

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Description Sam Fowler 2018-02-20 22:59:37 EST

libwebm through versions 1.0.0.27, which is bundled in chromium, is vulnerable to an out of bounds read issue. The function common/libwebm_util.cc:ParseVP9SuperFrameIndex() does not validate child_frame_length data obtained from a .webm file, which can cause an information leak, denial of service or other potential unspecified impact.


Upstream Commit:

https://github.com/webmproject/libwebm/commit/8e88e04b07352f2ca449278b44a2d8ec7631bdcf

Comment 1 Sam Fowler 2018-02-20 23:00:04 EST

Created chromium tracking bugs for this issue:

Affects: epel-7 [bug 1547350]
Affects: fedora-all [bug 1547351]

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