CVE-2016-10197

libevent: Out-of-bounds read in search_make_new()

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The search_make_new function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (out-of-bounds read) via an empty hostname.

La función search_make_new en evdns.c en libevent en versiones anteriores a 2.1.6-beta permite a atacantes provocar una denegación de servicio (fuera de límites de lectura) a través de un nombre de host vacío.

An out of bounds read vulnerability was found in libevent in the search_make_new function. If an attacker could cause an application using libevent to attempt resolving an empty hostname, an out of bounds read could occur possibly leading to a crash.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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

2017-02-01 CVE Reserved
2017-03-13 CVE Published
2024-02-16 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (14)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2017/01/31/17	Mailing List
http://www.openwall.com/lists/oss-security/2017/02/02/7	Mailing List
http://www.securityfocus.com/bid/96014	Third Party Advisory
http://www.securitytracker.com/id/1038320	Broken Link
https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog	Release Notes

URL	Date	SRC
https://github.com/libevent/libevent/issues/332	2024-08-06

URL	Date	SRC
https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e	2022-01-31

URL	Date	SRC
http://www.debian.org/security/2017/dsa-3789	2022-01-31
https://access.redhat.com/errata/RHSA-2017:1104	2022-01-31
https://access.redhat.com/errata/RHSA-2017:1106	2022-01-31
https://access.redhat.com/errata/RHSA-2017:1201	2022-01-31
https://security.gentoo.org/glsa/201705-01	2022-01-31
https://access.redhat.com/security/cve/CVE-2016-10197	2017-05-08
https://bugzilla.redhat.com/show_bug.cgi?id=1418612	2017-05-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
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
Libevent Project Search vendor "Libevent Project"		Libevent Search vendor "Libevent Project" for product "Libevent"				<= 2.1.5 Search vendor "Libevent Project" for product "Libevent" and version " <= 2.1.5"		-		Affected