SB2019030118 - Security restrictions bypass in openssh (Alpine package) 

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Main Vulnerability Database SB2019030118

SB2019030118 - Security restrictions bypass in openssh (Alpine package)

Published: March 1, 2019

Security Bulletin ID SB2019030118
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Security restrictions bypass (CVE-ID: CVE-2018-20685)

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists due to improper validation of filenames by the scp.c source code file in the SCP client . A remote unauthenticated attacker can trick the victim into accessing a file with the filename of . or an empty filename from an attacker-controlled Secure Shell (SSH) server to bypass access restrictions on the system, which could be used to conduct further attacks.


Remediation

Install update from vendor's website.

References