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FacebookCVE-2021-24032

HistoryMar 04, 2021 - 9:15 p.m.

CVE-2021-24032

2021-03-0421:15:12

CWE-276

CWE-277

facebook

web.nvd.nist.gov

175

cve-2021-24032

zstandard

security vulnerability

nvd

incomplete fix

default permissions

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.1

Confidence

High

EPSS

0.001

Percentile

26.6%

JSON

Beginning in v1.4.1 and prior to v1.4.9, due to an incomplete fix for CVE-2021-24031, the Zstandard command-line utility created output files with default permissions and restricted those permissions immediately afterwards. Output files could therefore momentarily be readable or writable to unintended parties.

Affected configurations

Nvd

Node

facebookzstandardRange1.4.1–1.4.9

VendorProductVersionCPE
facebookzstandard*cpe:2.3:a:facebook:zstandard:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
facebook	zstandard	*	cpe:2.3:a:facebook:zstandard::::::::

CNA Affected

[
  {
    "product": "Zstandard",
    "vendor": "Facebook",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "unaffected",
        "version": "1.4.9",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": "1.4.1",
        "versionType": "custom"
      },
      {
        "lessThan": "1.4.1",
        "status": "unaffected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]