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AUSCERT External Security Bulletin Redistribution
ESB-2021.0422
Mozilla Foundation Security Advisory 2021-06
8 February 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Firefox
Firefox ESR
Publisher: Mozilla
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Unknown/Unspecified
Denial of Service -- Unknown/Unspecified
Resolution: Patch/Upgrade
Original Bulletin:
https://www.mozilla.org/en-US/security/advisories/mfsa2021-06/
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Mozilla Foundation Security Advisory 2021-06
Security Vulnerabilities fixed in Firefox 85.0.1 and Firefox ESR 78.7.1
Announced: February 5, 2021
Impact: critical
Products: Firefox, Firefox ESR
Fixed in: Firefox 85.0.1
Firefox ESR 78.7.1
#MOZ-2021-0001: Buffer overflow in depth pitch calculations for compressed
textures
Reporter: Abraruddin Khan and Omair working with Trend Micro Zero Day Initiative
Impact: critical
Description
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.
Note: This issue only affected Windows operating systems. Other operating
systems are unaffected.
This issue has been assigned a temporary identifier, pending assignment of a
CVE.
References
o Bug 1676636
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