Summary
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.(CVE-2023-6857, CVE-2023-6858,
CVE-2023-6859, CVE-2023-6861, CVE-2023-6862, CVE-2023-6863, CVE-2023-6864)
Marcus Brinkmann discovered that Thunderbird did not properly parse a PGP/MIME
payload that contains digitally signed text. An attacker could potentially
exploit this issue to spoof an email message. (CVE-2023-50762)
Marcus Brinkmann discovered that Thunderbird did not properly compare the
signature creation date with the message date and time when using digitally
signed S/MIME email message. An attacker could potentially exploit this
issue to spoof date and time of an email message. (CVE-2023-50761)
DoHyun Lee discovered that Thunderbird did not properly manage memory when
used on systems with the Mesa VM driver. An attacker could potentially
exploit this issue to execute arbitrary code. (CVE-2023-6856)
Andrew Osmond discovered that Thunderbird did not properly validate the
textures produced by remote decoders. An attacker could potentially exploit
this issue to escape the sandbox. (CVE-2023-6860)
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | thunderbird | 1:115.6.0+build2-0ubuntu0.20.04.1 |
| Ubuntu · 22.04 LTS 22.04:LTS | thunderbird | 1:115.6.0+build2-0ubuntu0.22.04.1 |
Vulnerabilities 11
-
High 8.8
Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerabil…
-
Unscored —
The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. I…
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Unscored —
When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the text was never shown…
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Unscored —CVE-2023-6856 EPSS 21%
The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa V…
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Unscored —
When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary…
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Unscored —
A use-after-free condition affected TLS socket creation when under memory pressure. This vulnerability affects Firefox …
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Unscored —
The `VideoBridge` allowed any content process to use textures produced by remote decoders. This could be abused to esca…
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Unscored —
The `nsWindow::PickerOpen(void)` method was susceptible to a heap buffer overflow when running in headless mode. This v…
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Unscored —
A use-after-free was identified in the `nsDNSService::Init`. This issue appears to manifest rarely during start-up. Thi…
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Unscored —
The `ShutdownObserver()` was susceptible to potentially undefined behavior due to its reliance on a dynamic type that l…
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Unscored —
Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. Some of these bugs showed evidence…
References
-
report
https://ubuntu.com/security/CVE-2023-6856
-
report
https://ubuntu.com/security/CVE-2023-6857
-
report
https://ubuntu.com/security/CVE-2023-6858
-
report
https://ubuntu.com/security/CVE-2023-6859
-
report
https://ubuntu.com/security/CVE-2023-6860
-
report
https://ubuntu.com/security/CVE-2023-6861
-
report
https://ubuntu.com/security/CVE-2023-6862
-
report
https://ubuntu.com/security/CVE-2023-6863
-
report
https://ubuntu.com/security/CVE-2023-6864
-
report
https://ubuntu.com/security/CVE-2023-50761
-
report
https://ubuntu.com/security/CVE-2023-50762