GHSA-88cv-mj24-8w3q

Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/09/GHSA-88cv-mj24-8w3q/GHSA-88cv-mj24-8w3q.json
Aliases
  • CVE-2022-39224
Published
2022-09-21T17:00:12Z
Modified
2022-09-23T17:39:16.881900Z
Details

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. 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

References

Affected packages

RubyGems / arr-pm

arr-pm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0
Fixed
0.0.12

Affected versions

0.*

0.0.10
0.0.11
0.0.2
0.0.3
0.0.4
0.0.5
0.0.6
0.0.7
0.0.8
0.0.9