CVE-2018-5144

Mozilla: Integer overflow during Unicode conversion (MFSA 2018-07)

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Severity

Moderate

Red Hat Product Security

7.3

CVSS 3.0

Review impact separately from score.

Published · March 14, 2018

Updated · November 26, 2025

Description

An integer overflow can occur during conversion of text to some Unicode character sets due to an unchecked length parameter. This vulnerability affects Firefox ESR < 52.7 and Thunderbird < 52.7.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 7.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CWE-190 · Integer Overflow or Wraparound