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AUSCERT External Security Bulletin Redistribution
ESB-2020.3944
MFSA 2020-49 Security Vulnerabilities fixed in Firefox
82.0.3 and Firefox ESR 78.4.1
10 November 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Firefox 82.0.3
Firefox ESR 78.4.1
Publisher: Mozilla
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-26950
Original Bulletin:
https://www.mozilla.org/en-US/security/advisories/mfsa2020-49/
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Mozilla Foundation Security Advisory 2020-49
Security Vulnerabilities fixed in Firefox 82.0.3 and Firefox ESR 78.4.1
Announced
November 9, 2020
Impact
critical
Products
Firefox, Firefox ESR
Fixed in
Firefox 82.0.3
Firefox ESR 78.4.1
# CVE-2020-26950: Write side effects in MCallGetProperty opcode not accounted
for
Reporter
360 in Tianfu Cup 2020 International Cybersecurity
Contest
Impact
critical
Description
In certain circumstances, the MCallGetProperty opcode can be emitted with unmet
assumptions resulting in an exploitable use-after-free condition.
References
o Bug 1675905
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The University of Queensland
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