CVE-2018-12359

Impact:
Critical
Public Date:
2018-06-26
CWE:
CWE-120
Bugzilla:
1595024: CVE-2018-12359 Mozilla: Buffer overflow using computed size of canvas element

The MITRE CVE dictionary describes this issue as:

A buffer overflow can occur when rendering canvas content while adjusting the height and width of the canvas element dynamically, causing data to be written outside of the currently computed boundaries. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

Find out more about CVE-2018-12359 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 8.8
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
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 7 (firefox) RHSA-2018:2113 2018-06-28
Red Hat Enterprise Linux 7 (thunderbird) RHSA-2018:2252 2018-07-24
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2018:2251 2018-07-24
Red Hat Enterprise Linux 6 (firefox) RHSA-2018:2112 2018-06-28

Acknowledgements

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

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation