CVE-2017-7752

Publication date 14 June 2017

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Description

A use-after-free vulnerability during specific user interactions with the input method editor (IME) in some languages due to how events are handled. This results in a potentially exploitable crash but would require specific user interaction to trigger. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

Status

Package Ubuntu Release Status
thunderbird 17.04 zesty
Fixed 1:52.2.1+build1-0ubuntu0.17.04.1
16.10 yakkety
Fixed 1:52.2.1+build1-0ubuntu0.16.10.1
16.04 LTS xenial
Fixed 1:52.2.1+build1-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 1:52.2.1+build1-0ubuntu0.14.04.1
firefox 17.04 zesty
Fixed 54.0+build3-0ubuntu0.17.04.1
16.10 yakkety
Fixed 54.0+build3-0ubuntu0.16.10.1
16.04 LTS xenial
Fixed 54.0+build3-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 54.0+build3-0ubuntu0.14.04.1

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3321-1
    • Thunderbird vulnerabilities
    • 5 July 2017

Other references