CVE-2017-5436 Information

Description

An out-of-bounds write in the Graphite 2 library triggered with a maliciously crafted Graphite font. This results in a potentially exploitable crash. This issue was fixed in the Graphite 2 library as well as Mozilla products. This vulnerability affects Thunderbird 52.1 Firefox ESR 45.9 Firefox ESR 52.1 and Firefox 53.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/97940 http://www.securitytracker.com/id/1038320 https://access.redhat.com/errata/RHSA-2017:1104 https://access.redhat.com/errata/RHSA-2017:1106 https://access.redhat.com/errata/RHSA-2017:1201 https://bugzilla.mozilla.org/show_bug.cgi?id=1345461 https://security.gentoo.org/glsa/201706-25 https://www.debian.org/security/2017/dsa-3831 https://www.mozilla.org/security/advisories/mfsa2017-10/ https://www.mozilla.org/security/advisories/mfsa2017-11/ https://www.mozilla.org/security/advisories/mfsa2017-12/ https://www.mozilla.org/security/advisories/mfsa2017-13/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8