A use-after-free vulnerability can occur in AssertWorkerThread due to a race condition with shared workers. This results in a potentially exploitable crash. This vulnerability affects Firefox < 67.
CVSS Details
- CVSS 3.1 Base Score: 8.1
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jul 23, 2019 |
| Freebsd | — | Upgrade firefox-esrUpgrade firefoxUpgrade linux-seamonkeyUpgrade seamonkeyUpgrade thunderbirdUpgrade linux-firefoxUpgrade linux-thunderbirdUpgrade libxulUpgrade waterfox | May 23, 2019 | May 22, 2019 |
| Mfsa2019 13 | — | Upgrade to Mozilla Firefox version 67.0 | May 22, 2019 | May 21, 2019 |
| Suse | — | Upgrade mozillafirefox-develUpgrade mozillafirefoxUpgrade mozillafirefox-branding-upstreamUpgrade mozillafirefox-translations-otherUpgrade mozillafirefox-buildsymbolsUpgrade mozillafirefox-translations-common | Jun 10, 2019 | May 21, 2019 |
| Ubuntu | — | Upgrade firefox | May 22, 2019 | May 21, 2019 |
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