CVE-2019-6690: Input Validation
First published: Thu Mar 21 2019(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/python-gnupg | <0.4.4 | 0.4.4 |
| Python Python-gnupg | =0.4.3 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| openSUSE Leap | =15.0 | |
| Suse Backports | ||
| SUSE Linux Enterprise | =15.0 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| Canonical Ubuntu Linux | =19.04 | |
| ubuntu/python-gnupg | <0.3.6-1ubuntu0.1~ | 0.3.6-1ubuntu0.1~ |
| ubuntu/python-gnupg | <0.3.8-2ubuntu0.1~ | 0.3.8-2ubuntu0.1~ |
| ubuntu/python-gnupg | <0.4.1-1ubuntu1.18.04.1 | 0.4.1-1ubuntu1.18.04.1 |
| ubuntu/python-gnupg | <0.4.1-1ubuntu1.18.10.1 | 0.4.1-1ubuntu1.18.10.1 |
| ubuntu/python-gnupg | <0.4.3-1ubuntu1.19.04.1 | 0.4.3-1ubuntu1.19.04.1 |
| ubuntu/python-gnupg | <0.4.4-1 | 0.4.4-1 |
| All of | ||
| Suse Backports | ||
| SUSE Linux Enterprise | =15.0 | |
| debian/python-gnupg | 0.4.4-1 0.4.6-1 0.4.9-1 0.5.2-1 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2019-6690
- https://blog.hackeriet.no/cve-2019-6690-python-gnupg-vulnerability/
- https://github.com/advisories/GHSA-2fch-jvg5-crf6 (Advisory)
- https://lists.debian.org/debian-lts-announce/2019/02/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3WMV6XNPPL3VB3RQRFFOBCJ3AGWC4K47/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W6KYZMN2PWXY4ENZVJUVTGFBVYEVY7II/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X4VFRUG56542LTYK4444TPJBGR57MT25/
- https://pypi.org/project/python-gnupg/#history
- https://seclists.org/bugtraq/2019/Jan/41
- https://usn.ubuntu.com/3964-1/
- http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00008.html
- http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00058.html
- http://packetstormsecurity.com/files/151341/Python-GnuPG-0.4.3-Improper-Input-Validation.html
- https://lists.debian.org/debian-lts-announce/2021/12/msg00027.html
- https://web.archive.org/web/20200227091727/http://www.securityfocus.com/bid/106756
- http://www.securityfocus.com/bid/106756
- https://launchpad.net/bugs/cve/CVE-2019-6690
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3WMV6XNPPL3VB3RQRFFOBCJ3AGWC4K47/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6KYZMN2PWXY4ENZVJUVTGFBVYEVY7II/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X4VFRUG56542LTYK4444TPJBGR57MT25/
- https://github.com/stigtsp/CVE-2019-6690-python-gnupg-vulnerability
- https://github.com/vsajip/python-gnupg/commit/39eca266dd837e2ad89c94eb17b7a6f50b25e7cf#diff-88b99bb28683bd5b7e3a204826ead112
- https://github.com/vsajip/python-gnupg/commit/3003b654ca1c29b0510a54b9848571b3ad57df19#diff-88b99bb28683bd5b7e3a204826ead112
- https://security-tracker.debian.org/tracker/CVE-2019-6690
- https://ubuntu.com/security/notices/USN-3964-1
- https://ubuntu.com/security/notices/USN-4839-1
- https://www.cve.org/CVERecord?id=CVE-2019-6690
- https://ubuntu.com/security/CVE-2019-6690
Frequently Asked Questions
What is the severity of CVE-2019-6690?
The severity of CVE-2019-6690 is high with a CVSS score of 7.5.
What is the affected software version of CVE-2019-6690?
The affected software version of CVE-2019-6690 is python-gnupg 0.4.3.
How can an attacker exploit CVE-2019-6690?
An attacker can exploit CVE-2019-6690 by tricking gnupg to decrypt other ciphertext than intended.
What is the remedy for CVE-2019-6690?
The remedy for CVE-2019-6690 is to upgrade to python-gnupg version 0.4.4 or higher.
What is CWE-20?
CWE-20 is a category of weaknesses related to improper input validation.
- collector/github-advisory-latest
- alias/GHSA-2fch-jvg5-crf6
- alias/CVE-2019-6690
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- package-manager/pip
- vendor/python
- canonical/python python-gnupg
- version/python python-gnupg/0.4.3
- vendor/debian
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- version/debian debian linux/8.0
- version/debian debian linux/9.0
- vendor/opensuse
- canonical/opensuse leap
- version/opensuse leap/15.0
- vendor/suse
- canonical/suse backports
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- version/suse linux enterprise/15.0
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/18.10
- version/canonical ubuntu linux/19.04
- package-manager/debian
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