CVE-2019-11693

9.8 CRITICAL
Published: July 23, 2019 Modified: November 25, 2025

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1532525
Source: security@mozilla.org
Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-13/
Source: security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/
Source: security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-15/
Source: security@mozilla.org
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1532525
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-13/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-15/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

8 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
0.6%
69th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

mozilla linux