CVE-2020-8945

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 v3.0 7.5 HIGH
CVSS v2.0 5.1 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.1^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:H/Au:N/C:P/I:P/A:P

Exploitability : 4.9 / Impact : 6.4

Access Vector NETWORK

Access Complexity HIGH

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/proglottis/gpgme/pull/23	Exploit Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1795838	Issue Tracking Patch Third Party Advisory
https://github.com/proglottis/gpgme/compare/v0.1.0...v0.1.1	Patch Third Party Advisory
https://github.com/containers/image/commit/4c7a23f82ef09127b0ff28366d1cf31316dd6cc1	Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H6P6SSNKN4H6GSEVROHBDXA64PX7EOED/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KDBT77KV3U7BESJX3P4S4MPVDGRTAQA2/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WXV7NZELYWRRCXATXU3FYD3G3WJT3WYM/	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0679	Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0689	Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0697	Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gpgme_project:gpgme:*:*:*:*:*:go:*:*

Configuration 2 (hide)

AND

OR	cpe:2.3:a:redhat:openshift_container_platform:3.11:::::::*
	cpe:2.3:a:redhat:openshift_container_platform:4.1:::::::*
	cpe:2.3:a:redhat:openshift_container_platform:4.2:::::::*
	cpe:2.3:a:redhat:openshift_container_platform:4.3:::::::*
	cpe:2.3:a:redhat:openshift_container_platform:4.5:::::::*
	cpe:2.3:a:redhat:openshift_container_platform:4.4:::::::*
	cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.2:::::::*
	cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.2:::::::*
	cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.1:::::::*
	cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.1:::::::*

OR	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:30:::::::*
	cpe:2.3:o:fedoraproject:fedora:31:::::::*
	cpe:2.3:o:fedoraproject:fedora:32:::::::*

Configuration 4 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:::::::*

Configuration 5 (hide)

cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*

Information

Published : 2020-02-12 10:15

Updated : 2022-10-18 10:59

NVD link : CVE-2020-8945

Mitre link : CVE-2020-8945

JSON object : View

CWE

CWE-416

Use After Free

Products Affected

redhat

enterprise_linux_for_power_little_endian
enterprise_linux
enterprise_linux_workstation
enterprise_linux_for_ibm_z_systems
openshift_container_platform_for_ibm_z
openshift_container_platform
openshift_container_platform_for_linuxone
enterprise_linux_server

fedoraproject

fedora

gpgme_project

gpgme

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This leads to a crash or potential code execution during GPG signature verification."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-416"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-8945", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 5.1, "accessVector": "NETWORK", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "HIGH", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 4.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.6}}, "publishedDate": "2020-02-12T18:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:gpgme_project:gpgme:*:*:*:*:*:go:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "0.1.1"}]}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform:4.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform:4.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform:4.3:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform:4.5:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform:4.4:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform_for_ibm_z:4.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform_for_linuxone:4.1:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-10-18T17:59Z"}

7.5 /10