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Improper Input Validation python-gnupg

High severity GitHub Reviewed Published Mar 25, 2019 to the GitHub Advisory Database • Updated Sep 1, 2023

Package

pip python-gnupg (pip)

Affected versions

< 0.4.4

Patched versions

0.4.4

Description

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.

References

Published by the National Vulnerability Database Mar 21, 2019
Published to the GitHub Advisory Database Mar 25, 2019
Reviewed Jun 16, 2020
Last updated Sep 1, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS score

1.446%
(86th percentile)

Weaknesses

CVE ID

CVE-2019-6690

GHSA ID

GHSA-2fch-jvg5-crf6

Source code

No known source code
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