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CVE-2019-11693
CRITICAL
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.
Published: Jul 23, 2019
Modified: Jun 17, 2026
CWE-787
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (3)
| Vendor | Product | Version |
|---|---|---|
| mozilla | firefox | * < 60.7.0 |
| mozilla | firefox | * < 67.0 |
| mozilla | thunderbird | * < 60.7.0 |
GitHub Security Advisory GHSA-rm3r-xfmr-5622
The bufferdata function in WebGL is vulnerable to a buffer overflow with specific graphics...
References (8)
- https://bugzilla.mozilla.org/show_bug.cgi?id=1532525 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-13/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-14/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-15/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1532525 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-13/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-14/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-15/ Vendor Advisory
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
2.41%
Top 17% most likely to be exploited
Threat Score
39.9 / 100
Data Sources
NVD
EPSS
GitHub