Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : c-ares vulnerability (USN-3395-1)

Medium Nessus Plugin ID 102583

Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

It was discovered that c-ares incorrectly handled certain NAPTR responses. A remote attacker could possibly use this issue to cause applications using c-ares to crash, resulting in a denial of service.

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

Solution

Update the affected libc-ares2 package.

See Also

https://usn.ubuntu.com/3395-1/

Plugin Details

Severity: Medium

ID: 102583

File Name: ubuntu_USN-3395-1.nasl

Version: 3.7

Type: local

Agent: unix

Published: 2017/08/18

Updated: 2019/09/18

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

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

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libc-ares2, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:17.04

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/08/17

Vulnerability Publication Date: 2017/07/07

Reference Information

CVE: CVE-2017-1000381

USN: 3395-1