Mozilla Firefox up to 52 NSS out-of-bounds write

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.
6.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Mozilla Firefox up to 52. Impacted is an unknown function of the component NSS. Such manipulation leads to out-of-bounds write. This vulnerability is uniquely identified as CVE-2017-5461. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 52 (Web Browser) and classified as problematic. Affected by this issue is an unknown part of the component NSS. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is availability.

The bug was discovered 04/19/2017. The weakness was disclosed 04/19/2017 by Ronald Crane as MFSA 2017-10 as confirmed security advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability is handled as CVE-2017-5461 since 01/13/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 99713 (Amazon Linux AMI : nss / nss-util (ALAS-2017-825)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276572 (Fedora Security Update for firefox (FEDORA-2017-31c64a0bbf)).

Upgrading to version 53 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 (99713), SecurityFocus (BID 98050†) and SecurityTracker (ID 1038320†). The entries VDB-68431, VDB-89667, VDB-92931 and VDB-95678 are pretty similar. Once again VulDB remains the best source 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: 7.1
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 99713
Nessus Name: Amazon Linux AMI : nss / nss-util (ALAS-2017-825)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703831
OpenVAS Name: Debian Security Advisory DSA 3831-1 (firefox-esr - security update)
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 53

Timelineinfo

01/13/2017 🔍
04/05/2017 +82 days 🔍
04/19/2017 +14 days 🔍
04/19/2017 +0 days 🔍
04/19/2017 +0 days 🔍
04/20/2017 +1 days 🔍
04/20/2017 +0 days 🔍
04/28/2017 +8 days 🔍
05/10/2017 +12 days 🔍
12/21/2020 +1321 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2017-10
Researcher: Ronald Crane
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-5461 (🔍)
GCVE (CVE): GCVE-0-2017-5461
GCVE (VulDB): GCVE-100-100292

OVAL: 🔍

SecurityFocus: 98050 - Mozilla Network Security Services CVE-2017-5461 Memory Corruption Vulnerability
OSVDB: - CVE-2017-5461 - Mozilla - NSS - Out-of-Bounds Write Issue
SecurityTracker: 1038320

See also: 🔍

Entryinfo

Created: 04/20/2017 14:54
Updated: 12/21/2020 06:44
Changes: 04/20/2017 14:54 (80), 09/18/2020 09:20 (7), 12/21/2020 06:44 (3)
Complete: 🔍
Cache ID: 216:D49:103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!