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CVE-2017-7757

Published: 14 June 2017

A use-after-free vulnerability in IndexedDB when one of its objects is destroyed in memory while a method on it is still being executed. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
upstream
Released (54.0)
xenial
Released (54.0+build3-0ubuntu0.16.04.1)
yakkety
Released (54.0+build3-0ubuntu0.16.10.1)
zesty
Released (54.0+build3-0ubuntu0.17.04.1)
trusty
Released (54.0+build3-0ubuntu0.14.04.1)
thunderbird
Launchpad, Ubuntu, Debian
upstream
Released (52.2.0)
xenial
Released (1:52.2.1+build1-0ubuntu0.16.04.1)
yakkety
Released (1:52.2.1+build1-0ubuntu0.16.10.1)
zesty
Released (1:52.2.1+build1-0ubuntu0.17.04.1)
trusty
Released (1:52.2.1+build1-0ubuntu0.14.04.1)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H