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[email protected]CVE-2021-39933

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

CVE-2021-39933

2021-12-1316:15:09

CWE-1333

[email protected]

web.nvd.nist.gov

gitlab

vulnerability

dos attack

nvd

cve-2021-39933

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

6.2 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.6%

JSON

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.10 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. A regular expression used for handling user input (notes, comments, etc) was susceptible to catastrophic backtracking that could cause a DOS attack.

Affected configurations

NVD

Node

gitlabgitlabRange12.10.0–14.3.6community

gitlabgitlabRange12.10.0–14.3.6enterprise

gitlabgitlabRange14.4.0–14.4.4community

gitlabgitlabRange14.4.0–14.4.4enterprise

gitlabgitlabRange14.5.0–14.5.2community

gitlabgitlabRange14.5.0–14.5.2enterprise

CPENameOperatorVersion
gitlab:gitlabgitlablt14.3.6
gitlab:gitlabgitlablt14.4.4
gitlab:gitlabgitlablt14.5.2

CPE	Name	Operator	Version
gitlab:gitlab	gitlab	lt	14.3.6
gitlab:gitlab	gitlab	lt	14.4.4
gitlab:gitlab	gitlab	lt	14.5.2

CNA Affected

[
  {
    "product": "GitLab",
    "vendor": "GitLab",
    "versions": [
      {
        "status": "affected",
        "version": ">=12.10, <14.3.6"
      },
      {
        "status": "affected",
        "version": ">=14.4, <14.4.4"
      },
      {
        "status": "affected",
        "version": ">=14.5, <14.5.2"
      }
    ]
  }
]