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SnykCVE-2021-23354

HistoryMar 12, 2021 - 3:15 p.m.

CVE-2021-23354

2021-03-1215:15:14

CWE-1333

snyk

web.nvd.nist.gov

cve-2021-23354

package printf

redos

regular expression denial of service

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.002

Percentile

57.4%

JSON

The package printf before 0.6.1 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex string /%(?:(([\w_.]+))|([1-9]\d*)$)?([0 +-]*)(*|\d+)?(.)?(*|\d+)?[hlL]?([%bscdeEfFgGioOuxX])/g in lib/printf.js. The vulnerable regular expression has cubic worst-case time complexity.

Affected configurations

Nvd

Node

adaltasprintfRange<0.6.1node.js

VendorProductVersionCPE
adaltasprintf*cpe:2.3:a:adaltas:printf:*:*:*:*:*:node.js:*:*

Vendor	Product	Version	CPE
adaltas	printf	*	cpe:2.3:a:adaltas:printf::::::node.js::*

CNA Affected

[
  {
    "product": "printf",
    "vendor": "n/a",
    "versions": [
      {
        "lessThan": "0.6.1",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

github.com/adaltas/node-printf/issues/31

github.com/adaltas/node-printf/pull/32

snyk.io/vuln/SNYK-JS-PRINTF-1072096

Social References

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.002

Percentile

57.4%

JSON

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