CVE-2019-6690
python-gnupg 0.4.3 allows context-dependent attackers to trick gnupg to decrypt other ciphertext than intended.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 8.55% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- python/python-gnupg · debian/debian linux · opensuse/leap · suse/backports · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 8.5% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00008.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00058.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/151341/Python-GnuPG-0.4.3-Improper-Input-Validation.htmlThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/106756Broken Link
- https://blog.hackeriet.no/cve-2019-6690-python-gnupg-vulnerability/Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00021.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00027.htmlMailing List, Third Party Advisory
- 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://pypi.org/project/python-gnupg/#historyProduct, Third Party Advisory
- https://seclists.org/bugtraq/2019/Jan/41Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3964-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00008.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00058.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/151341/Python-GnuPG-0.4.3-Improper-Input-Validation.htmlThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/106756Broken Link
- https://blog.hackeriet.no/cve-2019-6690-python-gnupg-vulnerability/Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00021.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00027.htmlMailing List, Third Party Advisory
- 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://pypi.org/project/python-gnupg/#historyProduct, Third Party Advisory
- https://seclists.org/bugtraq/2019/Jan/41Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3964-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.