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mozilla firefox vulnerabilities and exploits
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6.5
CVSSv3
CVE-2023-6869
A `<dialog>` element could have been manipulated to paint content outside of a sandboxed iframe. This could allow untrusted content to display under the guise of trusted content. This vulnerability affects Firefox < 121.
Mozilla Firefox
4.3
CVSSv3
CVE-2023-6870
Applications which spawn a Toast notification in a background thread may have obscured fullscreen notifications displayed by Firefox. *This issue only affects Android versions of Firefox and Firefox Focus.* This vulnerability affects Firefox < 121.
Mozilla Firefox
Mozilla Firefox Focus -
4.3
CVSSv3
CVE-2023-6871
Under certain conditions, Firefox did not display a warning when a user attempted to navigate to a new protocol handler. This vulnerability affects Firefox < 121.
Mozilla Firefox
6.5
CVSSv3
CVE-2023-6872
Browser tab titles were being leaked by GNOME to system logs. This could potentially expose the browsing habits of users running in a private tab. This vulnerability affects Firefox < 121.
Mozilla Firefox
8.8
CVSSv3
CVE-2023-6873
Memory safety bugs present in Firefox 120. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 121.
Mozilla Firefox
Debian Debian Linux 10.0
Debian Debian Linux 11.0
Debian Debian Linux 12.0
4.3
CVSSv3
CVE-2023-6135
Multiple NSS NIST curves were susceptible to a side-channel attack known as "Minerva". This attack could potentially allow an malicious user to recover the private key. This vulnerability affects Firefox < 121.
Mozilla Firefox
4.3
CVSSv3
CVE-2023-50761
The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. If present, Thunderbird did not compare the signature creation date with the message date and time, and displayed a valid signature despite a date or time mismatc...
Mozilla Thunderbird
Debian Debian Linux 11.0
Debian Debian Linux 12.0
8.8
CVSSv3
CVE-2023-6856
The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an malicious user to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunde...
Mozilla Thunderbird
Mozilla Firefox
Mozilla Firefox Esr
Debian Debian Linux 10.0
Debian Debian Linux 11.0
Debian Debian Linux 12.0
5.3
CVSSv3
CVE-2023-6857
When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary. *This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115...
Mozilla Firefox
Mozilla Firefox Esr
Mozilla Thunderbird
Debian Debian Linux 10.0
Debian Debian Linux 11.0
Debian Debian Linux 12.0
8.8
CVSSv3
CVE-2023-6858
Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
Mozilla Thunderbird
Mozilla Firefox
Mozilla Firefox Esr
Debian Debian Linux 10.0
Debian Debian Linux 11.0
Debian Debian Linux 12.0
CVSSv3
CVSSv2
CVSSv3
VMScore
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