CVE-2016-5180

c-ares: Single byte out of buffer write

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Desbordamiento de búfer basado en memoria dinámica en la función ares_create_query en c-ares 1.x en versiones anteriores a 1.12.0 permite a atacantes remotos provocar una denegación de servicio (escritura fuera de límites) o posiblemente ejecutar código arbitrario a través de un nombre de host con puntos finales de fuga.

A vulnerability was found in c-ares. A hostname with an escaped trailing dot (such as "hello\.") would have its size calculated incorrectly, leading to a single byte written beyond the end of a buffer on the heap. An attacker able to provide such a hostname to an application using c-ares, could potentially cause that application to crash.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-05-31 CVE Reserved
2016-10-03 CVE Published
2024-08-06 CVE Updated
2024-11-02 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-122: Heap-based Buffer Overflow
CWE-787: Out-of-bounds Write

CAPEC

References (11)

URL	Tag	Source
http://www.securityfocus.com/bid/93243	Vdb Entry
https://c-ares.haxx.se/CVE-2016-5180.patch	X_refsource_confirm
https://c-ares.haxx.se/adv_20160929.html	X_refsource_confirm
https://googlechromereleases.blogspot.in/2016/09/stable-channel-updates-for-chrome-os.html	X_refsource_confirm
https://source.android.com/security/bulletin/2017-01-01.html	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2017-0002.html	2023-11-07
http://www.debian.org/security/2016/dsa-3682	2023-11-07
http://www.ubuntu.com/usn/USN-3143-1	2023-11-07
https://security.gentoo.org/glsa/201701-28	2023-11-07
https://access.redhat.com/security/cve/CVE-2016-5180	2017-01-02
https://bugzilla.redhat.com/show_bug.cgi?id=1380463	2017-01-02

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.0.0 Search vendor "C-ares" for product "C-ares" and version "1.0.0"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.1.0 Search vendor "C-ares" for product "C-ares" and version "1.1.0"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.2.0 Search vendor "C-ares" for product "C-ares" and version "1.2.0"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.2.1 Search vendor "C-ares" for product "C-ares" and version "1.2.1"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.3.0 Search vendor "C-ares" for product "C-ares" and version "1.3.0"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.3.1 Search vendor "C-ares" for product "C-ares" and version "1.3.1"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.3.2 Search vendor "C-ares" for product "C-ares" and version "1.3.2"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.4.0 Search vendor "C-ares" for product "C-ares" and version "1.4.0"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.5.0 Search vendor "C-ares" for product "C-ares" and version "1.5.0"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.5.1 Search vendor "C-ares" for product "C-ares" and version "1.5.1"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.5.2 Search vendor "C-ares" for product "C-ares" and version "1.5.2"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.5.3 Search vendor "C-ares" for product "C-ares" and version "1.5.3"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.6.0 Search vendor "C-ares" for product "C-ares" and version "1.6.0"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.7.0 Search vendor "C-ares" for product "C-ares" and version "1.7.0"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.7.1 Search vendor "C-ares" for product "C-ares" and version "1.7.1"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.7.2 Search vendor "C-ares" for product "C-ares" and version "1.7.2"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.7.3 Search vendor "C-ares" for product "C-ares" and version "1.7.3"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.7.4 Search vendor "C-ares" for product "C-ares" and version "1.7.4"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.7.5 Search vendor "C-ares" for product "C-ares" and version "1.7.5"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.8.0 Search vendor "C-ares" for product "C-ares" and version "1.8.0"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.9.0 Search vendor "C-ares" for product "C-ares" and version "1.9.0"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.9.1 Search vendor "C-ares" for product "C-ares" and version "1.9.1"		-		Affected
C-ares Search vendor "C-ares"		C-ares Search vendor "C-ares" for product "C-ares"				1.10.0 Search vendor "C-ares" for product "C-ares" and version "1.10.0"		-		Affected
C-ares Project Search vendor "C-ares Project"		C-ares Search vendor "C-ares Project" for product "C-ares"				1.11.0 Search vendor "C-ares Project" for product "C-ares" and version "1.11.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 0.10.0 < 0.10.48 Search vendor "Nodejs" for product "Node.js" and version " >= 0.10.0 < 0.10.48"		-		Affected
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 0.12.0 < 0.12.17 Search vendor "Nodejs" for product "Node.js" and version " >= 0.12.0 < 0.12.17"		-		Affected
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 4.0.0 < 4.6.1 Search vendor "Nodejs" for product "Node.js" and version " >= 4.0.0 < 4.6.1"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.10"		-		Affected