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RedhatCVE-2021-3569

HistoryJun 03, 2021 - 12:15 p.m.

CVE-2021-3569

2021-06-0312:15:07

CWE-787

CWE-120

redhat

web.nvd.nist.gov

cve-2021-3569

stack corruption

libtpms

rsa decryption

sigbus

swtpm

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

5.4

Confidence

High

EPSS

Percentile

12.6%

JSON

A stack corruption bug was found in libtpms in versions before 0.7.2 and before 0.8.0 while decrypting data using RSA. This flaw could result in a SIGBUS (bad memory access) and termination of swtpm. The highest threat from this vulnerability is to system availability.

Affected configurations

Nvd

Vulners

Node

libtpms_projectlibtpmsRange<0.7.2

libtpms_projectlibtpmsRange0.7.3–0.8.0

Node

redhatenterprise_linuxMatch8.0advanced_virtualization

VendorProductVersionCPE
libtpms_projectlibtpms*cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:*
redhatenterprise_linux8.0cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*

Vendor	Product	Version	CPE
libtpms_project	libtpms	*	cpe:2.3:a:libtpms_project:libtpms::::::::
redhat	enterprise_linux	8.0	cpe:2.3:o:redhat:enterprise_linux:8.0::::advanced_virtualization:::

CNA Affected

[
  {
    "product": "libtpms",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "libtpms 0.7.2, libtpms 0.8.0"
      }
    ]
  }
]