Mozilla Firefox up to 59.0 Vorbis Audio Data out-of-bounds write

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 59.0. It has been classified as critical. Affected by this issue is some unknown functionality of the component Vorbis Audio Data Handler. This manipulation causes out-of-bounds write. This vulnerability appears as CVE-2018-5146. 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 59.0 (Web Browser). It has been declared as critical. Affected by this vulnerability is an unknown code block of the component Vorbis Audio Data Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An out of bounds memory write while processing Vorbis audio data was reported through the Pwn2Own contest. This vulnerability affects Firefox < 59.0.1, Firefox ESR < 52.7.2, and Thunderbird < 52.7.

The bug was discovered 03/16/2018. The weakness was presented 03/16/2018 by Huzaifa Sidhpurwala with Zero Day Initiative as MFSA 2018-08 as confirmed security advisory (Website) via ZDI (Zero Day Initiative). The advisory is shared at mozilla.org. The public release was coordinated in cooperation with Mozilla. This vulnerability is known as CVE-2018-5146 since 01/03/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/26/2025).

The vulnerability scanner Nessus provides a plugin with the ID 108481 (Scientific Linux Security Update : firefox on SL6.x, SL7.x i386/x86_64), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Scientific Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176336 (Debian Security Update for thunderbird (DSA 4155-1)).

Upgrading to version 59.0.1 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 (108481), SecurityFocus (BID 103432†) and SecurityTracker (ID 1040544†). See VDB-114974 for similar entry. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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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: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / 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: 108481
Nessus Name: Scientific Linux Security Update : firefox on SL6.x, SL7.x i386/x86_64
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 863053
OpenVAS Name: Ubuntu Update for libvorbis USN-3604-1
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 59.0.1

Timelineinfo

01/03/2018 🔍
03/16/2018 +72 days 🔍
03/16/2018 +0 days 🔍
03/16/2018 +0 days 🔍
03/16/2018 +0 days 🔍
03/19/2018 +3 days 🔍
03/20/2018 +1 days 🔍
03/24/2018 +4 days 🔍
06/11/2018 +78 days 🔍
11/26/2025 +2725 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2018-08
Researcher: Huzaifa Sidhpurwala
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2018-5146 (🔍)
GCVE (CVE): GCVE-0-2018-5146
GCVE (VulDB): GCVE-100-114973

OVAL: 🔍

SecurityFocus: 103432 - Mozilla Firefox and Firefox ESR Multiple Out of Bounds Write Remote Code Execution Vulnerabilities
SecurityTracker: 1040544

See also: 🔍

Entryinfo

Created: 03/24/2018 19:42
Updated: 11/26/2025 07:33
Changes: 03/24/2018 19:42 (80), 01/16/2020 10:52 (10), 11/26/2025 07:33 (17)
Complete: 🔍
Cache ID: 216::103

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