The bufferdata function in WebGL is vulnerable to a buffer overflow with specific graphics drivers on Linux. This could result in malicious content freezing a tab or triggering a potentially exploitable crash. *Note: this issue only occurs on Linux. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
2019-07-23T14:15:14.107
2025-11-25T17:50:16.803
Modified
CVSSv3.0: 9.8 (CRITICAL)
AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | mozilla | firefox | < 60.7.0 | Yes |
| Application | mozilla | firefox | < 67.0 | Yes |
| Application | mozilla | thunderbird | < 60.7.0 | Yes |
| Operating System | linux | linux_kernel | - | No |