Linux · 
Red Hat · Security advisory · January 28, 2021
Red Hat · Security advisory · January 28, 2021RHSA-2021:0298: thunderbird security update
RHSA-2021:0298, released January 28, 2021, fixes 6 CVEs in thunderbird (version 0:78.7.0-1.el8_3). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
6
None rated Critical
Exploited
0
None reported
Highest CVSS
8.8
Base score, 0 to 10
Highest EPSS
0.0164
76th percentile
Priority of the 6 CVEs
Patch now 0
Urgent 0
High 4
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| thunderbird | RHEL 8 | 0:78.7.0-1.el8_3 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| 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-2020-15685 | Thunderbird: Improper Neutralization of Special Elements used in a Command ('Command Injection') | 8.8 | 0.0088 | None reported |
| Routine | CVE-2020-26976 | Firefox ESR and 1 other: When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former,… | 6.5 | 0.0164 | 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 |
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