CVE-2019-11693

Impact:
Important
Public Date:
2019-05-22
CWE:
CWE-120
Bugzilla:
1712619: CVE-2019-11693 Mozilla: Buffer overflow in WebGL bufferdata on Linux

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2019-11693 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

In general, this flaw cannot be exploited through email in Thunderbird because scripting is disabled when reading mail, but it is potentially a risk in browser or browser-like contexts.

CVSS v3 metrics

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2019:1310 2019-06-03
Red Hat Enterprise Linux 8 (thunderbird) RHSA-2019:1308 2019-06-03
Red Hat Enterprise Linux 7 (thunderbird) RHSA-2019:1309 2019-06-03
Red Hat Enterprise Linux 7 (firefox) RHSA-2019:1265 2019-05-23
Red Hat Enterprise Linux 6 (firefox) RHSA-2019:1267 2019-05-23
Red Hat Enterprise Linux 8 (firefox) RHSA-2019:1269 2019-05-23

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges crixer as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation