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.

• CWE-125

• http://www.debian.org/security/2017/dsa-3789Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/01/31/17Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/02/02/7Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/96014Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038320Broken Link, Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2017:1104Third Party Advisory
• https://access.redhat.com/errata/RHSA-2017:1106Third Party Advisory
• https://access.redhat.com/errata/RHSA-2017:1201Third Party Advisory
• https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLogRelease Notes, Third Party Advisory
• https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9ePatch, Third Party Advisory
• https://github.com/libevent/libevent/issues/332Exploit, Issue Tracking, Third Party Advisory
• https://security.gentoo.org/glsa/201705-01Third Party Advisory
• http://www.debian.org/security/2017/dsa-3789Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/01/31/17Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2017/02/02/7Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/96014Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1038320Broken Link, Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2017:1104Third Party Advisory
• https://access.redhat.com/errata/RHSA-2017:1106Third Party Advisory
• https://access.redhat.com/errata/RHSA-2017:1201Third Party Advisory
• https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLogRelease Notes, Third Party Advisory
• https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9ePatch, Third Party Advisory
• https://github.com/libevent/libevent/issues/332Exploit, Issue Tracking, Third Party Advisory
• https://security.gentoo.org/glsa/201705-01Third Party Advisory

Published

Mar 15, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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