Linux · Security advisory · March 25, 2021
RHSA-2021:0993: thunderbird security update
RHSA-2021:0993, released March 25, 2021, fixes 5 CVEs in thunderbird (version 0:78.9.0-3.el8_3). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
5
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0142
72nd percentile
Priority of the 5 CVEs
Patch now 0
Urgent 0
High 3
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| thunderbird | RHEL 8 | 0:78.9.0-3.el8_3 |
CVEs this fix closes
| Priority | CVE | Title | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| High | CVE-2021-23987 | Firefox ESR and 2 others: Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox… | 8.8 | 0.0142 | None reported | |
| High | CVE-2021-23981 | Firefox ESR and 2 others: A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer… | 8.1 | 0.0115 | None reported | |
| High | CVE-2021-4127 | Thunderbird: An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited. | 9.8 | 0.0095 | None reported | |
| Routine | CVE-2021-23984 | Firefox ESR and 2 others: A malicious extension could have opened a popup window lacking an address bar. | 6.5 | 0.0111 | None reported | |
| Routine | CVE-2021-23982 | Firefox ESR and 2 others: Using techniques that built on the slipstream research, a malicious webpage could have scanned both an… | 6.5 | 0.0074 | None reported |
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