CVE-2022-31163
Summary
| CVE | CVE-2022-31163 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-07-22 04:15:00 UTC |
| Updated | 2022-10-26 19:00:00 UTC |
| Description | TZInfo is a Ruby library that provides access to time zone data and allows times to be converted using time zone rules. Versions prior to 0.36.1, as well as those prior to 1.2.10 when used with the Ruby data source tzinfo-data, are vulnerable to relative path traversal. With the Ruby data source, time zones are defined in Ruby files. There is one file per time zone. Time zone files are loaded with `require` on demand. In the affected versions, `TZInfo::Timezone.get` fails to validate time zone identifiers correctly, allowing a new line character within the identifier. 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. Versions 0.3.61 and 1.2.10 include fixes to correctly validate time zone identifiers. Versions 2.0.0 and later are not vulnerable. Version 0.3.61 can still load arbitrary files from the Ruby load path if their name follows the rules for a valid time zone identifier and the file has a prefix of `tzinfo/definition` within a directory in the load path. Applications should ensure that untrusted files are not placed in a directory on the load path. As a workaround, the time zone identifier can be validated before passing to `TZInfo::Timezone.get` by ensuring it matches the regular expression `\A[A-Za-z0-9+\-_]+(?:\/[A-Za-z0-9+\-_]+)*\z`. |
Risk And Classification
Problem Types: CWE-22 | CWE-23
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Debian | Debian Linux | 10.0 | All | All | All |
| Application | Tzinfo Project | Tzinfo | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Fix relative path loading tests. · tzinfo/tzinfo@ca29f34 · GitHub | MISC | github.com | |
| Release v0.3.61 · tzinfo/tzinfo · GitHub | MISC | github.com | |
| Release v1.2.10 · tzinfo/tzinfo · GitHub | MISC | github.com | |
| Relative path traversal vulnerability allows TZInfo::Timezone.get to load arbitrary files · Advisory · tzinfo/tzinfo · GitHub | CONFIRM | github.com | |
| Fix directory traversal in Timezone.get · tzinfo/tzinfo@9eddbb5 · GitHub | MISC | github.com | |
| Fix directory traversal in Timezone.get when using Ruby data source · tzinfo/tzinfo@9905ca9 · GitHub | MISC | github.com | |
| [SECURITY] [DLA 3077-1] ruby-tzinfo security update | MLIST | lists.debian.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 180980 Debian Security Update for ruby-tzinfo (DLA 3077-1)
- 184807 Debian Security Update for ruby-tzinfo (CVE-2022-31163)
- 240796 Red Hat Update for Satellite 6.11.4 (RHSA-2022:7242)
- 241405 Red Hat Update for Satellite 6.13 (RHSA-2023:2097)
- 753387 SUSE Enterprise Linux Security Update for rubygem-tzinfo (SUSE-SU-2022:2592-1)
- 960924 Rocky Linux Security Update for Satellite (RLSA-2023:2097)