CVE-2018-12371

high

Description

An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at least 16 GB of RAM. This results in the use of uninitialized memory, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 60.1, Thunderbird < 60, and Firefox < 61.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1465686

https://www.mozilla.org/security/advisories/mfsa2018-15/

https://www.mozilla.org/security/advisories/mfsa2018-16/

https://www.mozilla.org/security/advisories/mfsa2018-19/

Details

Source: MITRE

Published: 2020-07-09

Updated: 2020-07-13

Type: CWE-190

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH