CVE-2018-12393

MEDIUM

Description

A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.

References

http://www.securityfocus.com/bid/105718

http://www.securityfocus.com/bid/105769

http://www.securitytracker.com/id/1041944

https://access.redhat.com/errata/RHSA-2018:3005

https://access.redhat.com/errata/RHSA-2018:3006

https://access.redhat.com/errata/RHSA-2018:3531

https://access.redhat.com/errata/RHSA-2018:3532

https://bugzilla.mozilla.org/show_bug.cgi?id=1495011

https://lists.debian.org/debian-lts-announce/2018/11/msg00008.html

https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html

https://security.gentoo.org/glsa/201811-04

https://security.gentoo.org/glsa/201811-13

https://usn.ubuntu.com/3801-1/

https://usn.ubuntu.com/3868-1/

https://www.debian.org/security/2018/dsa-4324

https://www.debian.org/security/2018/dsa-4337

https://www.mozilla.org/security/advisories/mfsa2018-26/

https://www.mozilla.org/security/advisories/mfsa2018-27/

https://www.mozilla.org/security/advisories/mfsa2018-28/

Details

Source: MITRE

Published: 2019-02-28

Updated: 2020-08-24

Type: CWE-787

Risk Information

CVSS v2.0

Base Score: 5

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

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH