Bug 1926979 (CVE-2020-16048) - CVE-2020-16048 Mozilla: Buffer overflow in depth pitch calculations for compressed textures
Summary: CVE-2020-16048 Mozilla: Buffer overflow in depth pitch calculations for compr...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2020-16048
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1925995
TreeView+ depends on / blocked
 
Reported: 2021-02-09 19:02 UTC by msiddiqu
Modified: 2021-10-05 06:55 UTC (History)
4 users (show)

Fixed In Version: firefox 85.0.1, firefox 78.7.1
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Environment:
Last Closed: 2021-02-09 19:03:24 UTC


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Description msiddiqu 2021-02-09 19:02:32 UTC
In the Angle graphics library, depth pitch computations did not take into account the block size and simply multiplied the row pitch with the pixel height.  This caused the load functions to use a very high depth pitch, reading past the end of the user-supplied buffer.

Comment 1 msiddiqu 2021-02-09 19:02:36 UTC
Acknowledgments:

Name: the Mozilla project
Upstream: Abraruddin Khan, Omair, Trend Micro Zero Day Initiative

Comment 2 msiddiqu 2021-02-09 19:03:28 UTC
Statement:

This vulnerability only affected Firefox on the Windows operating system.  Firefox on Red Hat Enterprise Linux is not affected.


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