Linux · Ubuntu · Package update · April 25, 2021

firefox 88.0+build2-0ubuntu0.18.04.2: firefox 88.0+build2-0ubuntu0.18.04.2 for Ubuntu 18.04.6 LTS (bionic)

firefox 88.0+build2-0ubuntu0.18.04.2, released April 25, 2021, fixes 12 CVEs in firefox. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

HighUnsupported product
CVEs closed
12
None rated Critical
Exploited
0
None reported
Highest CVSS
8.8
Base score, 0 to 10
Highest EPSS
0.0176
78th percentile

Priority of the 12 CVEs

Patch now 0 Urgent 0 High 7 Routine 5

Fixed package versions

ProductReleaseFixed in
firefoxUbuntu 18.04.6 LTS (bionic)88.0+build2-0ubuntu0.18.04.2

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
High CVE-2021-23994 Firefox ESR and 2 others: A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound…8.8 0.0176 None reported
High CVE-2021-23999 Firefox ESR and 2 others: If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System…8.8 0.0137 None reported
High CVE-2021-29946 Firefox ESR and 2 others: Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed…8.8 0.0130 None reported
High CVE-2021-23995 Firefox ESR and 2 others: When Responsive Design Mode was enabled, it used references to objects that were previously freed.8.8 0.0118 None reported
High CVE-2021-24002 Firefox ESR and 2 others: When a user clicked on an FTP URL containing encoded newline characters (%0A and %0D), the newlines would…8.8 0.0113 None reported
High CVE-2021-29947 Firefox ESR and 1 other: Mozilla developers and community members reported memory safety bugs present in Firefox 87.8.8 0.0087 None reported
High CVE-2021-23997 Firefox ESR and 1 other: Due to unexpected data type conversions, a use-after-free could have occurred when interacting with the…8.8 0.0082 None reported
Routine CVE-2021-29945 Firefox ESR and 2 others: The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and…6.5 0.0120 None reported
Routine CVE-2021-23996 Firefox ESR and 1 other: By utilizing 3D CSS in conjunction with Javascript, content could have been rendered outside the webpage's…6.5 0.0072 None reported
Routine CVE-2021-24000 Firefox ESR and 1 other: A race condition with requestPointerLock() and setTimeout() could have resulted in a user interacting…3.1 0.0061 None reported
Routine CVE-2021-23998 Firefox ESR and 2 others: Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon…6.5 0.0059 None reported
Routine CVE-2021-24001 Firefox ESR and 1 other: A compromised content process could have performed session history manipulations it should not have been…4.3 0.0057 None reported
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