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[email protected]CVE-2021-21607

HistoryJan 13, 2021 - 4:15 p.m.

CVE-2021-21607

2021-01-1316:15:13

CWE-770

[email protected]

web.nvd.nist.gov

123

cve-2021-21607

jenkins

url

query parameters

graph rendering

memory limitation

out of memory error

nvd

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

35.1%

JSON

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier does not limit sizes provided as query parameters to graph-rendering URLs, allowing attackers to request crafted URLs that use all available memory in Jenkins, potentially leading to out of memory errors.

Affected configurations

NVD

Node

jenkinsjenkinsRange≤2.263.1lts

jenkinsjenkinsRange≤2.274-

CPENameOperatorVersion
jenkins:jenkinsjenkinsle2.263.1
jenkins:jenkinsjenkinsle2.274

CPE	Name	Operator	Version
jenkins:jenkins	jenkins	le	2.263.1
jenkins:jenkins	jenkins	le	2.274

CNA Affected

[
  {
    "product": "Jenkins",
    "vendor": "Jenkins project",
    "versions": [
      {
        "lessThanOrEqual": "2.274",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "LTS 2.263.1",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]