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 linux-firefoxUpgrade seamonkeyUpgrade firefox-esrUpgrade linux-seamonkeyUpgrade libxulUpgrade linux-thunderbirdUpgrade firefoxUpgrade thunderbird | 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 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub