Description
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.
References (12)
Core 12
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/96014
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1106
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2017/dsa-3789
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2017/02/02/7
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201705-01
Exploit, Issue Tracking, Third Party Advisory x_refsource_confirm
https://github.com/libevent/libevent/issues/332
Patch, Third Party Advisory x_refsource_confirm
https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2017/01/31/17
Broken Link, Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1038320
Release Notes, Third Party Advisory x_refsource_confirm
https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1104
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:1201
Scores
CVSS v3
7.5
EPSS
0.0242
EPSS Percentile
85.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (2)
debian/debian_linux
8.0
libevent_project/libevent
< 2.1.5
Published
Mar 15, 2017
Tracked Since
Feb 18, 2026