CVE-2018-5178

Impact:
Moderate
Public Date:
2018-05-09
CWE:
CWE-120
Bugzilla:
1576278: CVE-2018-5178 Mozilla: Buffer overflow during UTF-8 to Unicode string conversion through legacy extension

The MITRE CVE dictionary describes this issue as:

A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts of data. This vulnerability requires the use of a malicious or vulnerable legacy extension in order to occur. This vulnerability affects Thunderbird ESR < 52.8, Thunderbird < 52.8, and Firefox ESR < 52.8.

Find out more about CVE-2018-5178 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 6.1
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Impact Low
Availability Impact None

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 7 (thunderbird) RHSA-2018:1725 2018-05-24
Red Hat Enterprise Linux 7 (firefox) RHSA-2018:1415 2018-05-14
Red Hat Enterprise Linux 6 (firefox) RHSA-2018:1414 2018-05-14
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2018:1726 2018-05-24

Acknowledgements

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

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation