Linux · Ubuntu · Package update · January 25, 2021

firefox 85.0+build1-0ubuntu0.18.04.1: firefox 85.0+build1-0ubuntu0.18.04.1 for Ubuntu 18.04.6 LTS (bionic)

firefox 85.0+build1-0ubuntu0.18.04.1, released January 25, 2021, fixes 11 CVEs in firefox. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

HighUnsupported product
CVEs closed
11
None rated Critical
Exploited
0
None reported
Highest CVSS
8.8
Base score, 0 to 10
Highest EPSS
0.0148
74th percentile

Priority of the 11 CVEs

Patch now 0 Urgent 0 High 6 Routine 5

Fixed package versions

ProductReleaseFixed in
firefoxUbuntu 18.04.6 LTS (bionic)85.0+build1-0ubuntu0.18.04.1

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
High CVE-2021-23961 Firefox ESR and 1 other: Further techniques that built on the slipstream research combined with a malicious webpage could have…7.4 0.0148 None reported
High CVE-2021-23964 Firefox ESR and 2 others: Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6.8.8 0.0136 None reported
High CVE-2021-23960 Firefox ESR and 2 others: Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and…8.8 0.0129 None reported
High CVE-2021-23954 Firefox ESR and 2 others: Using the new logical assignment operators in a JavaScript switch statement could have caused a type…8.8 0.0119 None reported
High CVE-2021-23965 Firefox ESR and 1 other: Mozilla developers reported memory safety bugs present in Firefox 84.8.8 0.0097 None reported
High CVE-2021-23962 Firefox ESR and 1 other: Incorrect use of the '<RowCountChanged>' method could have led to a user-after-poison and a potentially…8.8 0.0089 None reported
Routine CVE-2021-23953 Firefox ESR and 2 others: If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin…4.3 0.0106 None reported
Routine CVE-2021-23956 Firefox ESR and 1 other: An ambiguous file picker design could have confused users who intended to select and upload a single…6.5 0.0099 None reported
Routine CVE-2021-23958 Firefox ESR and 1 other: The browser could have been confused into transferring a screen sharing state into another tab, which…6.5 0.0088 None reported
Routine CVE-2021-23955 Firefox ESR and 1 other: The browser could have been confused into transferring a pointer lock state into another tab, which could…6.1 0.0066 None reported
Routine CVE-2021-23963 Firefox ESR and 1 other: When sharing geolocation during an active WebRTC share, Firefox could have reset the webRTC sharing state…4.3 0.0066 None reported
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