Vulnerability Name:

CVE-2020-8945 (CCN-176239)

Assigned:2020-02-12
Published:2020-02-12
Updated:2022-10-18
Summary:The proglottis Go wrapper before 0.1.1 for the GPGME library has a use-after-free, as demonstrated by use for container image pulls by Docker or CRI-O. This leads to a crash or potential code execution during GPG signature verification.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 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:H/E:U/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): High
CVSS v2 Severity:5.1 Medium (CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-416
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-8945

Source: REDHAT
Type: Third Party Advisory
RHSA-2020:0679

Source: REDHAT
Type: Third Party Advisory
RHSA-2020:0689

Source: REDHAT
Type: Third Party Advisory
RHSA-2020:0697

Source: CCN
Type: Red Hat Bugzilla - Bug 1795838
(CVE-2020-8945) - CVE-2020-8945 proglottis/gpgme: Use-after-free in GPGME bindings during container image pull

Source: MISC
Type: Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1795838

Source: XF
Type: UNKNOWN
gpgme-cve20208945-code-exec(176239)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/containers/image/commit/4c7a23f82ef09127b0ff28366d1cf31316dd6cc1

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/proglottis/gpgme/compare/v0.1.0...v0.1.1

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://github.com/proglottis/gpgme/pull/23

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2020-aeea04cd13

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2020-f317e13ecf

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2020-2a0aac3502

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2020-ccc3e64ea5

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-8945

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gpgme_project:gpgme:*:*:*:*:*:go:*:* (Version < 0.1.1)

    • Configuration 2:
  • cpe:/a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
  • OR cpe:/a:redhat:openshift_container_platform:4.1:*:*:*:*:*:*:*
  • OR cpe:/a:redhat:openshift_container_platform:4.2:*:*:*:*:*:*:*
  • OR cpe:/a:redhat:openshift_container_platform:4.3:*:*:*:*:*:*:*
  • OR cpe:/a:redhat:openshift_container_platform:4.5:*:*:*:*:*:*:*
  • OR cpe:/a:redhat:openshift_container_platform:4.4:*:*:*:*:*:*:*
  • OR cpe:/a:redhat:openshift_container_platform_for_ibm_z:4.2:*:*:*:*:*:*:*
  • OR cpe:/a:redhat:openshift_container_platform_for_linuxone:4.2:*:*:*:*:*:*:*
  • OR cpe:/a:redhat:openshift_container_platform_for_ibm_z:4.1:*:*:*:*:*:*:*
  • OR cpe:/a:redhat:openshift_container_platform_for_linuxone:4.1:*:*:*:*:*:*:*
  • AND
  • cpe:/o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:fedoraproject:fedora:30:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*
  • OR cpe:/o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:gnupg:gpgme:0.1.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:202089450000000
    V
    		CVE-2020-8945 on Ubuntu 18.04 LTS (bionic) - medium.
    2020-02-12
    BACK
    gpgme_project gpgme *
    redhat openshift container platform 3.11
    redhat openshift container platform 4.1
    redhat openshift container platform 4.2
    redhat openshift container platform 4.3
    redhat openshift container platform 4.5
    redhat openshift container platform 4.4
    redhat openshift container platform for ibm z 4.2
    redhat openshift container platform for linuxone 4.2
    redhat openshift container platform for ibm z 4.1
    redhat openshift container platform for linuxone 4.1
    redhat enterprise linux 7.0
    redhat enterprise linux 8.0
    fedoraproject fedora 30
    fedoraproject fedora 31
    fedoraproject fedora 32
    redhat enterprise linux workstation 7.0
    redhat enterprise linux server 7.0
    redhat enterprise linux for power little endian 7.0
    redhat enterprise linux for ibm z systems 7.0
    redhat openshift container platform 3.11
    gnupg gpgme 0.1.0