Vulnerability Name:

CVE-2019-6690 (CCN-156203)

Assigned:2019-01-25
Published:2019-01-25
Updated:2022-04-06
Summary: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 v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
6.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
9.1 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
8.2 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
9.4 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-20
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2019-6690

Source: SUSE
Type: Mailing List, Third Party Advisory
SU-2019:0143-1

Source: SUSE
Type: Mailing List, Third Party Advisory
SUSE-SU-2019:0239-1

Source: MISC
Type: Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/151341/Python-GnuPG-0.4.3-Improper-Input-Validation.html

Source: BID
Type: Broken Link
106756

Source: MISC
Type: Third Party Advisory
https://blog.hackeriet.no/cve-2019-6690-python-gnupg-vulnerability/

Source: XF
Type: UNKNOWN
pythongnupg-cve20196690-sec-bypass(156203)

Source: CCN
Type: python-gnupg Web site
python-gnupg - A Python wrapper for GnuPG

Source: MLIST
Type: Mailing List, Third Party Advisory
[SECURITY] [DLA 1675-1] 20190214 python-gnupg security update

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20211228 [SECURITY] [DLA 2862-1] python-gnupg security update

Source: FEDORA
Type: Broken Link
FEDORA-2020-e67d007a67

Source: FEDORA
Type: Broken Link
FEDORA-2019-06f5bbdaf5

Source: FEDORA
Type: Broken Link
FEDORA-2020-17fb3273b2

Source: CCN
Type: Packet Storm Security [01-25-2019]
Python GnuPG 0.4.3 Improper Input Validation

Source: MISC
Type: Product, Third Party Advisory
https://pypi.org/project/python-gnupg/#history

Source: BUGTRAQ
Type: Mailing List, Third Party Advisory
20190125 CVE-2019-6690: Improper Input Validation in python-gnupg

Source: CCN
Type: BugTraq Mailing List, Fri, 25 Jan 2019 10:58:23 +0100
CVE-2019-6690: Improper Input Validation in python-gnupg

Source: UBUNTU
Type: Third Party Advisory
USN-3964-1

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2019-6690

Vulnerable Configuration:Configuration 1:
  • cpe:/a:python:python-gnupg:0.4.3:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:opensuse:leap:15.0:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/a:suse:backports:-:*:*:*:*:*:*:*
  • AND
  • cpe:/o:suse:linux_enterprise:15.0:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:python:python-gnupg:0.4.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20196690
    V
    		CVE-2019-6690
    2023-06-22
    oval:org.opensuse.security:def:7780
    P
    		python3-python-gnupg-0.4.7-150400.1.4 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:3177
    P
    		libgme0-0.6.0-5.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:94807
    P
    		python3-python-gnupg-0.4.7-150400.1.4 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:113290
    P
    		python36-python-gnupg-0.4.7-1.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106702
    P
    		python36-python-gnupg-0.4.7-1.2 on GA media (Moderate)
    2021-10-01
    oval:com.ubuntu.xenial:def:201966900000000
    V
    		CVE-2019-6690 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-03-21
    oval:com.ubuntu.bionic:def:20196690000
    V
    		CVE-2019-6690 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-03-21
    oval:com.ubuntu.disco:def:201966900000000
    V
    		CVE-2019-6690 on Ubuntu 19.04 (disco) - medium.
    2019-03-21
    oval:com.ubuntu.cosmic:def:20196690000
    V
    		CVE-2019-6690 on Ubuntu 18.10 (cosmic) - medium.
    2019-03-21
    oval:com.ubuntu.cosmic:def:201966900000000
    V
    		CVE-2019-6690 on Ubuntu 18.10 (cosmic) - medium.
    2019-03-21
    oval:com.ubuntu.trusty:def:20196690000
    V
    		CVE-2019-6690 on Ubuntu 14.04 LTS (trusty) - medium.
    2019-03-21
    oval:com.ubuntu.bionic:def:201966900000000
    V
    		CVE-2019-6690 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-03-21
    oval:com.ubuntu.xenial:def:20196690000
    V
    		CVE-2019-6690 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-03-21
    BACK
    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 19.04
    canonical ubuntu linux 18.04
    canonical ubuntu linux 18.10
    python python-gnupg 0.4.3