SB2020081272 - Amazon Linux AMI update for keepalived

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Main Vulnerability Database SB2020081272

SB2020081272 - Amazon Linux AMI update for keepalived

Published: August 12, 2020

Security Bulletin ID SB2020081272
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) UNIX symbolic link following (CVE-ID: CVE-2018-19044)

CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following

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


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue when writing data to a temporary file upon a call to PrintData or PrintStats. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application, if fs.protected_symlinks is set to 0.

Successful exploitation of this vulnerability may result in privilege escalation.


Remediation

Install update from vendor's website.

References