# PYSEC-2019-45 - python-gnupg 0.4.3 allows context-dependent attackers to trick gnupg to decrypt other ciphertext than…

Source: https://junglewise.ai/threats/pysec-2019-45-python-gnupg-0-4-3-allows-context-dependent-attackers-to-b9a2b608  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2019-03-21  
License: CC BY 4.0 with a link back

Severity: info · Published 2019-03-21

python-gnupg 0.4.3 allows context-dependent attackers to trick gnupg to decrypt other ciphertext than intended. To perform the attack, the passphrase to gnupg must be controlled by the adversary and the ciphertext should be trusted. Related to a "CWE-20: Improper Input Validation" issue affecting the affect functionality component.

Technologies: [python-gnupg (PyPI)](https://junglewise.ai/threats/technologies/python-gnupg). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Informational severity, published 21 March 2019.

**Which products and versions are affected?** python-gnupg (PyPI) ECOSYSTEM:introduced=0,fixed=0.4.4.

**Is there a fix for This vulnerability?** Yes. python-gnupg (PyPI): upgrade to 0.4.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run python-gnupg (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- python-gnupg (PyPI): upgrade to 0.4.4 or later

  ```sh
  pip install "python-gnupg>=0.4.4"
  ```


## Affected products

- python-gnupg (PyPI) ECOSYSTEM:introduced=0,fixed=0.4.4

## Related threats

- [Duplicate Advisory: python-gnupg allows context-dependent attackers to trick gnupg to decrypt other ciphertext than intended](https://junglewise.ai/threats/cve-2019-6690-python-gnupg-improper-input-validation-in-passphrase-handling)
- [python-gnupg vulnerable to shell injection](https://junglewise.ai/threats/cve-2014-1929-python-gnupg-vulnerable-to-shell-injection)
- [python-gnupg's shell_quote function does not properly quote strings](https://junglewise.ai/threats/cve-2014-1927-python-gnupg-s-shell-quote-function-does-not-properly-quote)
- [python-gnupg shell_quote improper character escaping](https://junglewise.ai/threats/cve-2014-1928-python-gnupg-shell-quote-improper-character-escaping)
- [PYSEC-2014-89 - python-gnupg before 0.3.5 allows context-dependent attackers to execute arbitrary commands via shell metacharacters in unspecified vectors.](https://junglewise.ai/threats/cve-2013-7323-python-gnupg-allows-context-dependent-attackers-to-execute)