CVE-2021-23437 Regular Expression Denial of Service (ReDoS)

2021-09-0316:10:10

snyk

www.cve.org

cve-2021-23437

regular expression denial of service

redos

pillow

vulnerable

getrgb function

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

AI Score

7.7

Confidence

High

EPSS

0.007

Percentile

79.8%

JSON

The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "Pillow",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "lessThan": "unspecified",
        "versionType": "custom"
      },
      {
        "version": "unspecified",
        "lessThan": "8.3.2",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]