CVE-2022-39224 – arr-pm

Package

Manager: gem
Name: arr-pm
Vulnerable Version: >=0 <0.0.12

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00538 pctl0.66569

Details

arr-pm vulnerable to arbitrary shell execution when extracting or listing files contained in a malicious rpm. ### Impact Arbitrary shell execution is possible when using RPM::File#files and RPM::File#extract if the RPM contains a malicious "payload compressor" field. This vulnerability impacts the `extract` and `files` methods of the `RPM::File` class in the affected versions of this library. ### Patches Version 0.0.12 is available with a fix for these issues. ### Workarounds When using an affected version of this library (arr-pm), ensure any RPMs being processed contain valid/known payload compressor values. Such values include: gzip, bzip2, xz, zstd, and lzma. You can check the payload compressor field in an rpm by using the rpm command line tool. For example: ``` % rpm -qp example-1.0-1.x86_64.rpm --qf "%{PAYLOADCOMPRESSOR}\n" gzip ``` ### Impact on known dependent projects This library is used by [fpm](https://github.com/jordansissel/fpm). The vulnerability may impact fpm only when using the flag `-s rpm` or `--input-type rpm` to convert a malicious rpm to another format. It does not impact creating rpms. ### References * https://github.com/jordansissel/ruby-arr-pm/pull/14 * https://github.com/jordansissel/ruby-arr-pm/pull/15 ### Credit Thanks to @joernchen for reporting this problem and contributing to the resolution :) ### For more information If you have any questions or comments about this advisory: * Open an issue in [the arr-pm issue tracker](https://github.com/jordansissel/ruby-arr-pm/)

Metadata

Created: 2022-09-21T17:00:12Z
Modified: 2022-09-21T17:00:12Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/09/GHSA-88cv-mj24-8w3q/GHSA-88cv-mj24-8w3q.json
CWE IDs: ["CWE-78"]
Alternative ID: GHSA-88cv-mj24-8w3q
Finding: F404
Auto approve: 1