Linux · 
Ubuntu · Package update · December 19, 2023
Ubuntu · Package update · December 19, 2023thunderbird 1:115.6.0+build2-0ubuntu1: thunderbird 1:115.6.0+build2-0ubuntu1 for Ubuntu 24.04.5 LTS (noble)
thunderbird 1:115.6.0+build2-0ubuntu1, released December 19, 2023, fixes 9 CVEs in thunderbird. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
9
None rated Critical
Exploited
0
None reported
Highest CVSS
8.8
Base score, 0 to 10
Highest EPSS
0.2063
97th percentile
Priority of the 9 CVEs
Patch now 0
Urgent 0
High 7
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| thunderbird | Ubuntu 24.04.5 LTS (noble) | 1:115.6.0+build2-0ubuntu1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2023-6856 | Mozilla Firefox ESR and 5 others: The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems… | 8.8 | 0.2063 | None reported |
| High | CVE-2023-6858 | Mozilla Firefox ESR and 5 others: Out-of-bounds Write | 8.8 | 0.0154 | None reported |
| High | CVE-2023-6861 | Mozilla Firefox ESR and 5 others: The `nsWindow::PickerOpen(void)` method was susceptible to a heap buffer overflow when running in headless… | 8.8 | 0.0141 | None reported |
| High | CVE-2023-6864 | Mozilla Firefox ESR and 5 others: Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. | 8.8 | 0.0119 | None reported |
| High | CVE-2023-6859 | Mozilla Firefox ESR and 5 others: A use-after-free condition affected TLS socket creation when under memory pressure. | 8.8 | 0.0109 | None reported |
| High | CVE-2023-6863 | Mozilla Firefox ESR and 5 others: The `ShutdownObserver()` was susceptible to potentially undefined behavior due to its reliance on a dynamic… | 8.8 | 0.0104 | None reported |
| High | CVE-2023-6862 | Mozilla Thunderbird and 1 other: A use-after-free was identified in the `nsDNSService::Init`. | 8.8 | 0.0095 | None reported |
| Routine | CVE-2023-6860 | Mozilla Firefox ESR and 5 others: The `VideoBridge` allowed any content process to use textures produced by remote decoders. | 6.5 | 0.0096 | None reported |
| Routine | CVE-2023-6857 | thunderbird: When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary | 6.1 | 0.0067 | None reported |
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