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Vulnerability record · CVE-2016-10197 · published 15 March 2017

CVE-2016-10197: Debian linux out-of-bounds read vulnerability

Debian · Debian Linux

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.

7.5 CVSS 3.1 High EPSS 5.2% · top 7.8% CWE-125 · Out-of-bounds read
7.5CVSS 3.1 base score, v2 5.0
5.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
24References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.debian.org/security/2017/dsa-3789 Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/01/31/17 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/02/7 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/96014 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038320 Broken LinkThird Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2017:1104 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1106 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1201 Third Party Advisory
https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog Release NotesThird Party Advisory
https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e PatchThird Party Advisory
https://github.com/libevent/libevent/issues/332 ExploitIssue TrackingThird Party Advisory
https://security.gentoo.org/glsa/201705-01 Third Party Advisory
http://www.debian.org/security/2017/dsa-3789 Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/01/31/17 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2017/02/02/7 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/96014 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038320 Broken LinkThird Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2017:1104 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1106 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1201 Third Party Advisory
https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog Release NotesThird Party Advisory
https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e PatchThird Party Advisory
https://github.com/libevent/libevent/issues/332 ExploitIssue TrackingThird Party Advisory
https://security.gentoo.org/glsa/201705-01 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2016-10197), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.