Vulnerability Report

CVE-2016-10197

Title: Libevent Project Libevent Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2016-10197.

CWE Category CWE-125

Published Date Mar 15, 2017

Modified Date May 13, 2026

Exploit Status Not Found

Score 7.5 CVSS v3.1

Exploit Probability (EPSS)

5.19%

Vulnerability Summary

CVE-2016-10197: 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.

Impacted Vendors

libevent_project 1

niels_provos 1

Reference Links

http://www.debian.org/security/2017/dsa-3789 http://www.openwall.com/lists/oss-security/2017/01/31/17 http://www.openwall.com/lists/oss-security/2017/02/02/7 http://www.securityfocus.com/bid/96014 http://www.securitytracker.com/id/1038320 https://access.redhat.com/errata/RHSA-2017:1104 https://access.redhat.com/errata/RHSA-2017:1106 https://access.redhat.com/errata/RHSA-2017:1201 https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e https://github.com/libevent/libevent/issues/332 https://security.gentoo.org/glsa/201705-01 http://www.debian.org/security/2017/dsa-3789 http://www.openwall.com/lists/oss-security/2017/01/31/17 http://www.openwall.com/lists/oss-security/2017/02/02/7 http://www.securityfocus.com/bid/96014 http://www.securitytracker.com/id/1038320 https://access.redhat.com/errata/RHSA-2017:1104 https://access.redhat.com/errata/RHSA-2017:1106 https://access.redhat.com/errata/RHSA-2017:1201 https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e https://github.com/libevent/libevent/issues/332 https://security.gentoo.org/glsa/201705-01

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns