Amazon Linux 2 : bind (ALAS-2018-954)

Medium Nessus Plugin ID 109125

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

Improper fetch cleanup sequencing in the resolver can cause named to crash

A use-after-free flaw leading to denial of service was found in the way BIND internally handled cleanup operations on upstream recursion fetch contexts. A remote attacker could potentially use this flaw to make named, acting as a DNSSEC validating resolver, exit unexpectedly with an assertion failure via a specially crafted DNS request.
(CVE-2017-3145)

Solution

Run 'yum update bind' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2018-954.html

Plugin Details

Severity: Medium

ID: 109125

File Name: al2_ALAS-2018-954.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2018/04/18

Updated: 2019/02/12

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

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

CVSS v3.0

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:bind, p-cpe:/a:amazon:linux:bind-chroot, p-cpe:/a:amazon:linux:bind-debuginfo, p-cpe:/a:amazon:linux:bind-devel, p-cpe:/a:amazon:linux:bind-libs, p-cpe:/a:amazon:linux:bind-libs-lite, p-cpe:/a:amazon:linux:bind-license, p-cpe:/a:amazon:linux:bind-lite-devel, p-cpe:/a:amazon:linux:bind-pkcs11, p-cpe:/a:amazon:linux:bind-pkcs11-devel, p-cpe:/a:amazon:linux:bind-pkcs11-libs, p-cpe:/a:amazon:linux:bind-pkcs11-utils, p-cpe:/a:amazon:linux:bind-sdb, p-cpe:/a:amazon:linux:bind-sdb-chroot, p-cpe:/a:amazon:linux:bind-utils, cpe:/o:amazon:linux:2

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

Patch Publication Date: 2018/02/21

Vulnerability Publication Date: 2019/01/16

Reference Information

CVE: CVE-2017-3145

ALAS: 2018-954