Linux · 
Ubuntu · Package update · February 5, 2025
Ubuntu · Package update · February 5, 2025firefox 135.0+build2-0ubuntu0.20.04.1: firefox 135.0+build2-0ubuntu0.20.04.1 for Ubuntu 20.04 LTS (focal)
firefox 135.0+build2-0ubuntu0.20.04.1, released February 5, 2025, fixes 11 CVEs in firefox. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.
HighUnsupported product
CVEs closed
11
None rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0120
68th percentile
Priority of the 11 CVEs
Patch now 0
Urgent 0
High 9
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| firefox | Ubuntu 20.04 LTS (focal) | 135.0+build2-0ubuntu0.20.04.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2025-1009 | Use-after-free in XSLT | 9.8 | 0.0120 | None reported |
| High | CVE-2025-1011 | A bug in WebAssembly code generation could result in a crash | 8.8 | 0.0063 | None reported |
| High | CVE-2025-1016 | Memory safety bugs fixed in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, Thunderbird 115.20, and Thunderbird 128.7 | 9.8 | 0.0059 | None reported |
| High | CVE-2025-1017 | Memory safety bugs fixed in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7 | 9.8 | 0.0058 | None reported |
| High | CVE-2025-1020 | Memory safety bugs fixed in Firefox 135 and Thunderbird 135 | 9.8 | 0.0054 | None reported |
| High | CVE-2025-1010 | Use-after-free in Custom Highlight | 8.8 | 0.0046 | None reported |
| High | CVE-2025-1012 | Use-after-free during concurrent delazification | 8.8 | 0.0045 | None reported |
| High | CVE-2025-1014 | Certificate length was not properly checked | 8.8 | 0.0039 | None reported |
| High | CVE-2025-1013 | Potential opening of private browsing tabs in normal browsing windows | 8.8 | 0.0032 | None reported |
| Routine | CVE-2025-1018 | Fullscreen notification is not displayed when fullscreen is re-requested | 5.3 | 0.0041 | None reported |
| Routine | CVE-2025-1019 | Fullscreen notification not properly displayed | 4.3 | 0.0036 | None reported |
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