Google Chrome 43 WebAudio use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability, which was classified as critical, was found in Google Chrome 43 (Web Browser). Affected is an unknown functionality of the component WebAudio. 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 confidentiality, integrity, and availability.

The weakness was presented 05/19/2015 by Atte Kettunen (Cloudfuzzer) with Zero Day Initiative as Stable Channel Update, May 2015 as confirmed release notes (Website). The advisory is shared for download at This vulnerability is traded as CVE-2015-1255 since 01/21/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/19/2022). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability scanner Nessus provides a plugin with the ID 83784 (Debian DSA-3267-1 : chromium-browser - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167838 (OpenSuSE Security Update for Chromium (openSUSE-SU-2015:0969-1)).

Upgrading to version 43.0.2357.65 eliminates this vulnerability. The upgrade is hosted for download at A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (103266) and Tenable (83784). See 75465, 75466, 75467 and 75469 for similar entries.






  • free

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
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Class: Use after free
CWE: CWE-416 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Nessus ID: 83784
Nessus Name: Debian DSA-3267-1 : chromium-browser - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703267
OpenVAS Name: Debian Security Advisory DSA 3267-1 (chromium-browser - security update)
OpenVAS File: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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Upgrade: Chrome 43.0.2357.65


01/21/2015 🔍
05/19/2015 +118 days 🔍
05/19/2015 +0 days 🔍
05/19/2015 +0 days 🔍
05/19/2015 +0 days 🔍
05/20/2015 +1 days 🔍
05/20/2015 +0 days 🔍
05/20/2015 +0 days 🔍
05/21/2015 +1 days 🔍
05/19/2022 +2555 days 🔍



Advisory: Stable Channel Update, May 2015
Researcher: Atte Kettunen (Cloudfuzzer)
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-1255 (🔍)

X-Force: 103266 - Google Chrome WebAudio code execution
SecurityTracker: 1032375 - Google Chrome Multiple Bugs Let Remote Users Execute Arbitrary Code, Bypass Same-Origin Restrictions, and Spoof URLs
Vulnerability Center: 50239 - Google Chrome <43.0.2357.65 Remote Code Execution due to Use-After-Free in WebAudio, Medium
SecurityFocus: 74723 - Google Chrome Prior to 43.0.2357.65 Multiple Security Vulnerabilities

See also: 🔍


Created: 05/20/2015 11:00 AM
Updated: 05/19/2022 07:52 AM
Changes: 05/20/2015 11:00 AM (78), 06/29/2017 07:19 AM (9), 05/19/2022 07:47 AM (3), 05/19/2022 07:52 AM (1)
Complete: 🔍


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