Amazon Linux AMI update for 389-ds-base

1) Resource exhaustion

EUVDB-ID: #VU16059

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-14648

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition.

The vulnerability exists due to excessive CPU consumption in the do_search() function. A remote attacker can supply specially crafted search queries to trigger resource exhaustion and denial of service.

Mitigation

Update the affected packages.

i686:
    389-ds-base-snmp-1.3.8.4-18.60.amzn1.i686
    389-ds-base-libs-1.3.8.4-18.60.amzn1.i686
    389-ds-base-debuginfo-1.3.8.4-18.60.amzn1.i686
    389-ds-base-1.3.8.4-18.60.amzn1.i686
    389-ds-base-devel-1.3.8.4-18.60.amzn1.i686

src:
    389-ds-base-1.3.8.4-18.60.amzn1.src

x86_64:
    389-ds-base-debuginfo-1.3.8.4-18.60.amzn1.x86_64
    389-ds-base-devel-1.3.8.4-18.60.amzn1.x86_64
    389-ds-base-libs-1.3.8.4-18.60.amzn1.x86_64
    389-ds-base-1.3.8.4-18.60.amzn1.x86_64
    389-ds-base-snmp-1.3.8.4-18.60.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:

External links

http://alas.aws.amazon.com/ALAS-2018-1106.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.