SB2016080937 - Fedora 24 update for openssh

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Main Vulnerability Database SB2016080937

SB2016080937 - Fedora 24 update for openssh

Published: August 9, 2016 Updated: April 24, 2025

Security Bulletin ID SB2016080937
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Consuming excessive CPU resources on the target system (CVE-ID: CVE-2016-6515)

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:P/U:Green


The vulnerability allows a remote attacker to consume excessive CPU resources on the target system.

The vulnerability exists in the crypt(3) function, which accepts passwords longer that 1024 characters in auth_password() function in the auth_passwd.c . A remote unauthenticated attacker can submit a very long string as a password and consume excessive CPU resources.

Successful exploitation of this vulnerability may result in denial of service.


Remediation

Install update from vendor's website.

References