Linux · Security advisory · April 16, 2020

RHSA-2020:1495: thunderbird security update

RHSA-2020:1495, released April 16, 2020, fixes 5 CVEs in thunderbird (version 0:68.7.0-1.el8_1). 2 of them are being exploited (CVE-2020-6820); 2 on CISA KEV. Patch Radar priority: Patch now.

Patch now2 on CISA KEV
CVEs closed
5
2 rated Critical
Exploited
2
CVE-2020-6820
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0706
94th percentile

Priority of the 5 CVEs

Patch now 2 Urgent 0 High 3 Routine 0

Fixed package versions

ProductReleaseFixed in
thunderbirdRHEL 80:68.7.0-1.el8_1

CVEs this fix closes

PriorityCVETitleImpactCVSSEPSSExploitation
Patch now CVE-2020-6820 Mozilla Firefox And Thunderbird Use-After-Free Vulnerability 8.8 0.0706 KEVExploited
Patch now CVE-2020-6819 Mozilla Firefox And Thunderbird Use-After-Free Vulnerability 8.8 0.0304 KEVExploited
High CVE-2020-6825 Firefox ESR: Mozilla developers and community members Tyson Smith and Christian Holler reported memory safety bugs… 9.8 0.0219 None reported
High CVE-2020-6821 Firefox ESR: When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code>… 7.5 0.0151 None reported
High CVE-2020-6822 Firefox ESR: On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB… 8.8 0.0133 None reported
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