Linux · Red Hat · Security advisory · January 2, 2024

RHSA-2024:0003: thunderbird security update

RHSA-2024:0003, released January 2, 2024, fixes 11 CVEs in thunderbird (version 0:115.6.0-1.el8_9). None of them is reported as exploited. Patch Radar priority: High.

High
CVEs closed
11
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 11 CVEs

Patch now 0 Urgent 0 High 9 Routine 2

Fixed package versions

ProductReleaseFixed in
thunderbirdRHEL 80:115.6.0-1.el8_9

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
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 Write8.8 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
High CVE-2023-50761 Mozilla Thunderbird and 1 other: The signature of a digitally signed S/MIME email message may optionally specify the signature creation…7.5 0.0063 None reported
High CVE-2023-50762 Mozilla Thunderbird and 1 other: When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the text…7.5 0.0063 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 necessary6.1 0.0067 None reported
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