Lucene search

[email protected]CVE-2021-20319

HistoryMar 04, 2022 - 6:15 p.m.

CVE-2021-20319

2022-03-0418:15:08

CWE-347

[email protected]

web.nvd.nist.gov

120

cve-2021-20319

coreos-installer

signature verification

bypass

installation

vulnerability

nvd

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

32.9%

JSON

An improper signature verification vulnerability was found in coreos-installer. A specially crafted gzip installation image can bypass the image signature verification and as a consequence can lead to the installation of unsigned content. An attacker able to modify the original installation image can write arbitrary data, and achieve full access to the node being installed.

Affected configurations

Vulners

NVD

Node

redhatcoreos-installerRange≤0.10.1

VendorProductVersionCPE
redhatcoreos\-installer*cpe:2.3:a:redhat:coreos\-installer:*:*:*:*:*:*:*:*
redhatcoreos\-installer*cpe:2.3:a:redhat:coreos\-installer:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
redhat	coreos\-installer	*	cpe:2.3:a:redhat:coreos\-installer::::::::
redhat	coreos\-installer	*	cpe:2.3:a:redhat:coreos\-installer::::::::

CNA Affected

[
  {
    "product": "coreos-installer",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Affects coreos-installer before v0.10.1, Fixed in v0.10.1."
      }
    ]
  }
]