Mozilla Firefox up to 64 Audio Buffer memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Mozilla Firefox up to 64. This impacts an unknown function of the component Audio Buffer. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2018-18503. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 64 (Web Browser). It has been rated as problematic. This issue affects some unknown processing of the component Audio Buffer. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. The summary by CVE is:

When JavaScript is used to create and manipulate an audio buffer, a potentially exploitable crash may occur because of a compartment mismatch in some situations. This vulnerability affects Firefox < 65.

The bug was discovered 01/29/2019. The weakness was published 02/05/2019 by Christian Holler (Alex) as MFSA 2019-01 as confirmed security advisory (Website). It is possible to read the advisory at mozilla.org. The identification of this vulnerability is CVE-2018-18503 since 10/19/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 121507 (Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : firefox vulnerabilities (USN-3874-1)), 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 197358 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-3874-1)).

Upgrading to version 65 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 (121507) and SecurityFocus (BID 106781†). Similar entries are available at VDB-130532, VDB-130533, VDB-130534 and VDB-130536. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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: 121507
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : firefox vulnerabilities (USN-3874-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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 65

Timelineinfo

10/19/2018 🔍
01/29/2019 +102 days 🔍
01/29/2019 +0 days 🔍
01/31/2019 +2 days 🔍
02/05/2019 +5 days 🔍
02/05/2019 +0 days 🔍
02/06/2019 +1 days 🔍
05/08/2020 +457 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2019-01
Researcher: Christian Holler (Alex)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-18503 (🔍)
GCVE (CVE): GCVE-0-2018-18503
GCVE (VulDB): GCVE-100-130535
SecurityFocus: 106781 - Mozilla Firefox Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 02/06/2019 13:29
Updated: 05/08/2020 11:37
Changes: 02/06/2019 13:29 (70), 05/08/2020 11:37 (13)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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