SB2022072942 - SUSE update for rubygem-tzinfo

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Main Vulnerability Database SB2022072942

SB2022072942 - SUSE update for rubygem-tzinfo

Published: July 29, 2022

Security Bulletin ID SB2022072942
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Path traversal (CVE-ID: CVE-2022-31163)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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


The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing a new line character in the TZInfo::Timezone.get. With Ruby version 1.9.3 and later, TZInfo::Timezone.get can be made to load unintended files with require, executing them within the Ruby process. A remote attacker can pass specially crafted input to the application and execute arbitrary code on the system.

Exploitation example:

TZInfo::Timezone.get("foo\n/../../../../../../../../../../../../../../../../tmp/payload")


Remediation

Install update from vendor's website.

References