CVE-2016-10197
HIGHCVSS 7.5/10EPSS 5.19%
Last modified
CVE-2016-10197 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 5.19% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Debian | Debian Linux | 8.0 |
| Libevent Project | Libevent | <= 2.1.5 |
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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2016-10197?
CVE-2016-10197 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 5.19% probability of exploitation in the next 30 days.
How do I fix CVE-2016-10197?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2016-10197?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST