SB2016092205 - Amazon Linux AMI update for openssl

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Main Vulnerability Database SB2016092205

SB2016092205 - Amazon Linux AMI update for openssl

Published: September 22, 2016 Updated: October 6, 2022

Security Bulletin ID SB2016092205
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Resource exhaustion (CVE-ID: CVE-2016-6304)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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

The vulnerability exists due to improper resource management in OCSP stapling implementation in OpenSSL. A remote attacker can multiple requests with a large OCSP Status Request extension and consume all available memory on the system.


2) Denial of service (CVE-ID: CVE-2016-6305)

CWE-ID: CWE-371 - State Issues

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote authenticated user to trigger denial of service on the target system.
The weakness exists due to state error. By sendidng specially crafted files attackers can cause a flaw in SSL_peek() that may lead to the affected service hanging.
Successful exploitation of the vulnerability results in denial of service on the vulnerable system.

Remediation

Install update from vendor's website.

References