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[email protected]CVE-2021-23382

HistoryApr 26, 2021 - 4:15 p.m.

CVE-2021-23382

2021-04-2616:15:07

CWE-1333

[email protected]

web.nvd.nist.gov

cve-2021-23382

postcss

package

vulnerability

redos

nvd

5 Medium

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

7.5 High

CVSS3

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

6 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.6%

JSON

The package postcss before 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern /*\s* sourceMappingURL=(.*).

Affected configurations

NVD

Node

postcsspostcssRange<7.0.36node.js

postcsspostcssRange8.0.0–8.2.13node.js

CPENameOperatorVersion
postcss:postcsspostcsslt7.0.36
postcss:postcsspostcsslt8.2.13

CPE	Name	Operator	Version
postcss:postcss	postcss	lt	7.0.36
postcss:postcss	postcss	lt	8.2.13

CNA Affected

[
  {
    "product": "postcss",
    "vendor": "n/a",
    "versions": [
      {
        "lessThan": "8.2.13",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]