CVE-2017-7809 Information

Description

A use-after-free vulnerability can occur when an editor DOM node is deleted prematurely during tree traversal while still bound to the document. This results in a potentially exploitable crash. This vulnerability affects Thunderbird 52.3 Firefox ESR 52.3 and Firefox 55.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/100203 http://www.securitytracker.com/id/1039124 https://access.redhat.com/errata/RHSA-2017:2456 https://access.redhat.com/errata/RHSA-2017:2534 https://bugzilla.mozilla.org/show_bug.cgi?id=1380284 https://security.gentoo.org/glsa/201803-14 https://www.debian.org/security/2017/dsa-3928 https://www.debian.org/security/2017/dsa-3968 https://www.mozilla.org/security/advisories/mfsa2017-18/ https://www.mozilla.org/security/advisories/mfsa2017-19/ https://www.mozilla.org/security/advisories/mfsa2017-20/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8