VulnerabilityModified
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.
HIGH 7.5EPSS 5.19%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 5.19% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- debian/debian linux · libevent project/libevent
- Source
- cve@mitre.org
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.