Mozilla Firefox up to 57.x XLS Transformation use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 57.x. It has been classified as problematic. This issue affects some unknown processing of the component XLS Transformation. The manipulation leads to use after free. This vulnerability is listed as CVE-2018-5097. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 57.x (Web Browser) and classified as problematic. This issue affects an unknown code block of the component XLS Transformation. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is availability.

The bug was discovered 01/23/2018. The weakness was presented 01/23/2018 by xisigr with Tencent as MFSA 2018-02 as confirmed security advisory (Website). It is possible to read the advisory at mozilla.org. The identification of this vulnerability is CVE-2018-5097 since 01/03/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 106790 (Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : firefox regressions (USN-3544-2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157636 (Oracle Enterprise Linux Security Update for firefox (ELSA-2018-0122)).

Upgrading to version 58.0 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 (106790), SecurityFocus (BID 102783†) and SecurityTracker (ID 1040270†). See VDB-112518, VDB-112519, VDB-112520 and VDB-112521 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: 106790
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : firefox regressions (USN-3544-2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 66413
OpenVAS Name: CentOS Update for firefox CESA-2018:0122 centos6
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 58.0

Timelineinfo

01/03/2018 🔍
01/23/2018 +20 days 🔍
01/23/2018 +0 days 🔍
01/23/2018 +0 days 🔍
01/23/2018 +0 days 🔍
01/24/2018 +1 days 🔍
01/28/2018 +4 days 🔍
02/13/2018 +16 days 🔍
06/11/2018 +117 days 🔍
11/26/2025 +2725 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2018-02
Researcher: Looben Yang, Nils, and xisigr (xisigr)
Organization: Tencent
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-5097 (🔍)
GCVE (CVE): GCVE-0-2018-5097
GCVE (VulDB): GCVE-100-112523

OVAL: 🔍

SecurityFocus: 102783 - Mozilla Firefox and Firefox ESR Multiple Security Vulnerabilities
SecurityTracker: 1040270

See also: 🔍

Entryinfo

Created: 01/28/2018 10:17
Updated: 11/26/2025 06:37
Changes: 01/28/2018 10:17 (77), 12/30/2019 11:09 (10), 02/01/2021 19:33 (3), 02/01/2021 19:36 (1), 11/26/2025 06:37 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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