Mozilla Firefox up to 40 GetMaxLength memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Mozilla Firefox up to 40 and classified as critical. Impacted is the function nsUnicodeToUTF8::GetMaxLength. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2015-4522. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Mozilla Firefox up to 40 (Web Browser). This affects the function nsUnicodeToUTF8::GetMaxLength. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The nsUnicodeToUTF8::GetMaxLength function in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 might allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via unknown vectors, related to an "overflow."

The weakness was shared 09/24/2015 by Christian Holler (Website). It is possible to read the advisory at bugzilla.mozilla.org. This vulnerability is uniquely identified as CVE-2015-4522 since 06/10/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 86514 (CentOS 5 / 6 / 7 : firefox (CESA-2015:1834)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168112 (OpenSuSE Security Update for MozillaThunderbird (openSUSE-SU-2015:1679-1)).

Upgrading to version 41.0 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 20821.

The vulnerability is also documented in the databases at X-Force (106649), Tenable (86514), SecurityFocus (BID 76816†) and Vulnerability Center (SBV-52937†). The entries VDB-78021, VDB-78022, VDB-78027 and VDB-78030 are related to this item. 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: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 86514
Nessus Name: CentOS 5 / 6 / 7 : firefox (CESA-2015:1834)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703365
OpenVAS Name: Debian Security Advisory DSA 3365-1 (iceweasel - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 41.0
TippingPoint: 🔍

Timelineinfo

06/10/2015 🔍
09/22/2015 +104 days 🔍
09/22/2015 +0 days 🔍
09/24/2015 +2 days 🔍
09/24/2015 +0 days 🔍
09/24/2015 +0 days 🔍
09/25/2015 +1 days 🔍
10/22/2024 +3315 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: RHSA-2015:1834
Researcher: Christian Holler
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4522 (🔍)
GCVE (CVE): GCVE-0-2015-4522
GCVE (VulDB): GCVE-100-78039

OVAL: 🔍

X-Force: 106649 - Mozilla Firefox nsAttrAndChildArray::GrowBy code execution
SecurityFocus: 76816 - Mozilla Firefox Multiple Security Vulnerabilities
SecurityTracker: 1033640
Vulnerability Center: 52937 - Mozilla Firefox before 41 and Firefox ESR 38 before 38.3 Remote DoS Vulnerability - CVE-2015-4522, Medium

See also: 🔍

Entryinfo

Created: 09/25/2015 17:59
Updated: 10/22/2024 23:08
Changes: 09/25/2015 17:59 (64), 01/03/2018 09:53 (13), 06/19/2022 04:07 (4), 06/19/2022 04:19 (1), 06/19/2022 04:29 (2), 10/22/2024 23:08 (15)
Complete: 🔍
Cache ID: 216:BBA:103

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

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