Mozilla Firefox up to 52 Input Selection use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Mozilla Firefox up to 52. This impacts an unknown function of the component Input Selection Handler. The manipulation results in use after free. This vulnerability is identified as CVE-2017-5432. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in Mozilla Firefox up to 52 (Web Browser). Affected is an unknown function of the component Input Selection Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on availability. CVE summarizes:

A use-after-free vulnerability occurs during certain text input selection resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

The bug was discovered 04/19/2017. The weakness was released 04/19/2017 by Huzaifa Sidhpurwala with Zero Day Initiative as MFSA 2017-10 as confirmed security advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability is traded as CVE-2017-5432 since 01/13/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 100687 (EulerOS 2.0 SP1 : firefox (EulerOS-SA-2017-1092)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Huawei Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157437 (Oracle Enterprise Linux Security Update for firefox (ELSA-2017-1104)).

Upgrading to version 53 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100687), SecurityFocus (BID 97940†) and SecurityTracker (ID 1038320†). Entries connected to this vulnerability are available at VDB-100289, VDB-100290, VDB-100291 and VDB-100292. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100687
Nessus Name: EulerOS 2.0 SP1 : firefox (EulerOS-SA-2017-1092)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 881932
OpenVAS Name: CentOS Update for thunderbird CESA-2017:1201 centos7
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Firefox 53

Timelineinfo

01/13/2017 🔍
04/19/2017 +96 days 🔍
04/19/2017 +0 days 🔍
04/19/2017 +0 days 🔍
04/19/2017 +0 days 🔍
04/20/2017 +1 days 🔍
04/20/2017 +0 days 🔍
06/09/2017 +50 days 🔍
06/11/2018 +366 days 🔍
11/26/2025 +2725 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2017-10
Researcher: Huzaifa Sidhpurwala
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-5432 (🔍)
GCVE (CVE): GCVE-0-2017-5432
GCVE (VulDB): GCVE-100-100296

OVAL: 🔍

SecurityFocus: 97940 - Mozilla Firefox Multiple Security Vulnerabilities
OSVDB: - CVE-2017-5432 - Mozilla - Multiple Products - Use-After-Free Issue
SecurityTracker: 1038320

See also: 🔍

Entryinfo

Created: 04/20/2017 14:54
Updated: 11/26/2025 02:54
Changes: 04/20/2017 14:54 (82), 09/18/2020 09:33 (8), 11/26/2025 02:54 (18)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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