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.
9.6	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in c-ares up to 1.11.x. This vulnerability affects the function ares_create_query. The manipulation leads to out-of-bounds write. This vulnerability is referenced as CVE-2016-5180. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in c-ares up to 1.11.x. This issue affects the function ares_create_query. 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 confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow in the ares_create_query function in c-ares 1.x before 1.12.0 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly execute arbitrary code via a hostname with an escaped trailing dot.

The weakness was published 10/03/2016 (Website). It is possible to read the advisory at debian.org. The identification of this vulnerability is CVE-2016-5180 since 05/31/2016. The exploitation is known to be easy. 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 pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/27/2024).

The vulnerability scanner Nessus provides a plugin with the ID 94805 (Fedora 25 : mingw-c-ares (2016-4f34f26649)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169645 (OpenSuSE Security Update for libcares2 (openSUSE-SU-2017:0082-1)).

Upgrading to version 1.12.0 eliminates this vulnerability. A possible mitigation has been published 6 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (94805) and SecurityFocus (BID 93243†). Similar entry is available at VDB-94930. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• c-ares

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 94805
Nessus Name: Fedora 25 : mingw-c-ares (2016-4f34f26649)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 863097
OpenVAS Name: Fedora Update for c-ares FEDORA-2016-e523c37b4d
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: c-ares 1.12.0

Timelineinfo

05/31/2016 🔍
09/29/2016 +121 days 🔍
10/03/2016 +4 days 🔍
10/03/2016 +0 days 🔍
10/04/2016 +1 days 🔍
10/09/2016 +5 days 🔍
11/15/2016 +37 days 🔍
09/27/2024 +2873 days 🔍

Sourcesinfo

Advisory: FEDORA-2016-4f34f26649
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-5180 (🔍)
GCVE (CVE): GCVE-0-2016-5180
GCVE (VulDB): GCVE-100-92315

OVAL: 🔍

SecurityFocus: 93243 - C-ares CVE-2016-5180 Out of Bounds Write Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 10/04/2016 10:29
Updated: 09/27/2024 16:16
Changes: 10/04/2016 10:29 (62), 04/30/2019 15:01 (15), 09/22/2022 06:05 (3), 09/22/2022 06:14 (1), 09/22/2022 06:24 (1), 09/27/2024 16:16 (16)
Complete: 🔍
Cache ID: 216:D94:103

Discussion

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