Linux · 
Ubuntu · Package update · April 6, 2020
Ubuntu · Package update · April 6, 2020firefox 75.0+build3-0ubuntu1: firefox 75.0+build3-0ubuntu1 for Ubuntu 20.04 LTS (focal)
firefox 75.0+build3-0ubuntu1, released April 6, 2020, fixes 8 CVEs in firefox. 2 of them are being exploited (CVE-2020-6820); 2 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.
Patch now2 on CISA KEVUnsupported product
CVEs closed
8
2 rated Critical
Exploited
2
CVE-2020-6820
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0706
94th percentile
Priority of the 8 CVEs
Patch now 2
Urgent 0
High 5
Routine 1
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| firefox | Ubuntu 20.04 LTS (focal) | 75.0+build3-0ubuntu1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| 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-2020-6823 | Firefox ESR: A malicious extension could have called <code>browser.identity.launchWebAuthFlow</code>, controlling… | 9.8 | 0.0161 | 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-2020-6826 | Firefox ESR: Mozilla developers Tyson Smith, Bob Clary, and Alexandru Michis reported memory safety bugs present in… | 9.8 | 0.0143 | 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 |
| Routine | CVE-2020-6824 | Firefox ESR: Initially, a user opens a Private Browsing Window and generates a password for a site, then closes the… | 2.8 | 0.0027 | None reported |
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