Amazon Linux AMI update for 389-ds-base



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-3883
CWE-ID CWE-399
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Amazon Linux AMI
Operating systems & Components / Operating system

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Resource management error

EUVDB-ID: #VU20063

Risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-3883

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect processing of tome outs for SSL/TLS connections. A remote authenticated user initiate a large number of SSL/TLS connections and consume all available workers, which will lead to a denial of service attack. 



Mitigation

Update the affected packages:

i686:
    389-ds-base-devel-1.3.8.4-25.1.62.amzn1.i686
    389-ds-base-libs-1.3.8.4-25.1.62.amzn1.i686
    389-ds-base-debuginfo-1.3.8.4-25.1.62.amzn1.i686
    389-ds-base-1.3.8.4-25.1.62.amzn1.i686
    389-ds-base-snmp-1.3.8.4-25.1.62.amzn1.i686

src:
    389-ds-base-1.3.8.4-25.1.62.amzn1.src

x86_64:
    389-ds-base-snmp-1.3.8.4-25.1.62.amzn1.x86_64
    389-ds-base-devel-1.3.8.4-25.1.62.amzn1.x86_64
    389-ds-base-1.3.8.4-25.1.62.amzn1.x86_64
    389-ds-base-libs-1.3.8.4-25.1.62.amzn1.x86_64
    389-ds-base-debuginfo-1.3.8.4-25.1.62.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3 External links

https://alas.aws.amazon.com/ALAS-2019-1261.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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



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