Bug 2110551 (CVE-2022-31163) - CVE-2022-31163 rubygem-tzinfo: arbitrary code execution
Summary: CVE-2022-31163 rubygem-tzinfo: arbitrary code execution
Keywords:
Status: NEW
Alias: CVE-2022-31163
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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Depends On: 2110977 2110979 2111914 2111919 2110552 2110978 2111896 2111918
Blocks: 2110553
TreeView+ depends on / blocked
 
Reported: 2022-07-25 15:33 UTC by Marian Rehak
Modified: 2022-10-27 13:01 UTC (History)
29 users (show)

Fixed In Version: rubygem-tzinfo 1.2.10
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in rubygem-tzinfo. When using the Timezone.get function, it fails to validate time zone identifiers correctly, allowing a new line character input within the identifier. This flaw allows an attacker to use the new line character and write any code, which will be executed within the Ruby process.
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2022:7242 0 None None None 2022-10-27 13:01:13 UTC

Description Marian Rehak 2022-07-25 15:33:27 UTC 
`TZInfo::Timezone.get` fails to validate time zone identifiers correctly, allowing a new line character within the identifier. `TZInfo::Timezone.get` can be made to load unintended files with `require`, executing them within the Ruby process.

Reference:

https://github.com/tzinfo/tzinfo/security/advisories/GHSA-5cm2-9h8c-rvfx
Comment 1 Marian Rehak 2022-07-25 15:33:44 UTC 
Created rubygem-tzinfo tracking bugs for this issue:

Affects: epel-7 [bug 2110552]
Comment 4 errata-xmlrpc 2022-10-27 13:01:10 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 6.11 for RHEL 7
  Red Hat Satellite 6.11 for RHEL 8

Via RHSA-2022:7242 https://access.redhat.com/errata/RHSA-2022:7242
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