CVE-2021-3917

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-3917
A flaw was found in the coreos-installer, where it writes the Ignition config to the target system with world-readable access permissions. This flaw allows a local attacker to have read access to potentially sensitive data. The highest threat from this vulnerability is to confidentiality.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://access.redhat.com/security/cve/CVE-2021-3917 Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2018478 Issue Tracking Vendor Advisory
https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c Patch Third Party Advisory
https://github.com/coreos/fedora-coreos-tracker/issues/889 Issue Tracking Patch Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-3917 Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2018478 Issue Tracking Vendor Advisory
https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c Patch Third Party Advisory
https://github.com/coreos/fedora-coreos-tracker/issues/889 Issue Tracking Patch Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:redhat:coreos-installer:*:*:*:*:*:*:*:*
History

21 Nov 2024, 06:22

Type Values Removed Values Added
References () https://access.redhat.com/security/cve/CVE-2021-3917 - Patch, Vendor Advisory () https://access.redhat.com/security/cve/CVE-2021-3917 - Patch, Vendor Advisory
References () https://bugzilla.redhat.com/show_bug.cgi?id=2018478 - Issue Tracking, Vendor Advisory () https://bugzilla.redhat.com/show_bug.cgi?id=2018478 - Issue Tracking, Vendor Advisory
References () https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c - Patch, Third Party Advisory () https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c - Patch, Third Party Advisory
References () https://github.com/coreos/fedora-coreos-tracker/issues/889 - Issue Tracking, Patch, Third Party Advisory () https://github.com/coreos/fedora-coreos-tracker/issues/889 - Issue Tracking, Patch, Third Party Advisory

26 Aug 2022, 19:15

Type Values Removed Values Added
CPE cpe:2.3:a:redhat:coreos-installer:*:*:*:*:*:*:*:*
CWE CWE-276
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2018478 - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2018478 - Issue Tracking, Vendor Advisory
References (MISC) https://github.com/coreos/fedora-coreos-tracker/issues/889 - (MISC) https://github.com/coreos/fedora-coreos-tracker/issues/889 - Issue Tracking, Patch, Third Party Advisory
References (MISC) https://access.redhat.com/security/cve/CVE-2021-3917 - (MISC) https://access.redhat.com/security/cve/CVE-2021-3917 - Patch, Vendor Advisory
References (MISC) https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c - (MISC) https://github.com/coreos/coreos-installer/commit/2a36405339c87b16ed6c76e91ad5b76638fbdb0c - Patch, Third Party Advisory

23 Aug 2022, 20:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-08-23 20:15

Updated : 2024-11-21 06:22

NVD link : CVE-2021-3917

Mitre link : CVE-2021-3917

CVE.ORG link : CVE-2021-3917

JSON object : View

Products Affected

redhat

  • coreos-installer
CWE
CWE-276

Incorrect Default Permissions