EulerOS 2.0 SP2 : libevent (EulerOS-SA-2017-1091)

High Nessus Plugin ID 100686


The remote EulerOS host is missing multiple security updates.


According to the versions of the libevent package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

- The name_parse function in evdns.c in libevent before 2.1.6-beta allows remote attackers to have unspecified impact via vectors involving the label_len variable, which triggers an out-of-bounds stack read.(CVE-2016-10195)

- Stack-based buffer overflow in the evutil_parse_sockaddr_port function in evutil.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (segmentation fault) via vectors involving a long string in brackets in the ip_as_string argument.(CVE-2016-10196)

- 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.(CVE-2016-10197)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected libevent packages.

See Also

Plugin Details

Severity: High

ID: 100686

File Name: EulerOS_SA-2017-1091.nasl

Version: $Revision: 3.1 $

Type: local

Published: 2017/06/09

Modified: 2017/06/09

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C


Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:libevent, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/04/20

Reference Information

CVE: CVE-2016-10195, CVE-2016-10196, CVE-2016-10197

OSVDB: 151245, 151246, 151247