Inside the JavaScript parser, a cast of an integer to a narrower type can result in data read from outside the buffer being parsed. This usually results in a non-exploitable crash, but can leak a limited amount of information from memory if it matches JavaScript identifier syntax. This vulnerability affects Firefox < 56.
CVSS Details
- CVSS 3.1 Base Score: 8.2
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade firefoxUpgrade libxulUpgrade linux-thunderbirdUpgrade thunderbirdUpgrade linux-seamonkeyUpgrade seamonkeyUpgrade linux-firefoxUpgrade firefox-esr | Sep 29, 2017 | Sep 29, 2017 |
| Mfsa2017 21 | — | Upgrade to Mozilla Firefox version 56.0 | Jul 12, 2018 | Jun 11, 2018 |
| Suse | — | Upgrade mozillafirefox-translations-otherUpgrade mozillafirefoxUpgrade mozillafirefox-translations-common | May 20, 2018 | Sep 28, 2017 |
| Ubuntu | — | Upgrade firefox | Oct 3, 2017 | Sep 28, 2017 |
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