Mozilla Firefox up to 40 NetworkUtils.cpp memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
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.
6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Mozilla Firefox up to 40. Affected by this issue is some unknown functionality of the file NetworkUtils.cpp. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2015-4517. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 40 (Web Browser) and classified as critical. This issue affects some unknown processing of the file NetworkUtils.cpp. 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 confidentiality, integrity, and availability. The summary by CVE is:

NetworkUtils.cpp 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.

The weakness was published 09/24/2015 by Christian Holler (Website). It is possible to read the advisory at bugzilla.mozilla.org. The identification of this vulnerability is CVE-2015-4517 since 06/10/2015. The attack may be initiated remotely. No form of authentication is needed for a successful 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 168108 (OpenSuSE Security Update for MozillaFirefox (openSUSE-SU-2015:1658-1)).

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 (106647), Tenable (86514), SecurityFocus (BID 76816†) and Vulnerability Center (SBV-52935†). Similar entries are available at VDB-78020, VDB-78021, VDB-78022 and VDB-78023. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

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-2015-4517 (🔍)
GCVE (CVE): GCVE-0-2015-4517
GCVE (VulDB): GCVE-100-78035

OVAL: 🔍

X-Force: 106647 - Mozilla Firefox NetworkUtils.cpp code execution
SecurityFocus: 76816 - Mozilla Firefox Multiple Security Vulnerabilities
SecurityTracker: 1033640
Vulnerability Center: 52935 - Mozilla Firefox before 41 and Firefox ESR 38 before 38.3 Remote DoS Vulnerability - CVE-2015-4517, Medium

See also: 🔍

Entryinfo

Created: 09/25/2015 17:58
Updated: 10/22/2024 23:08
Changes: 09/25/2015 17:58 (64), 01/03/2018 09:52 (13), 06/19/2022 02:39 (4), 06/19/2022 02:46 (1), 06/19/2022 02:53 (2), 10/22/2024 23:08 (15)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!