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TalosCVE-2021-21806

HistoryJul 08, 2021 - 12:15 p.m.

CVE-2021-21806

2021-07-0812:15:10

CWE-416

talos

web.nvd.nist.gov

168

cve-2021-21806

webkitgtk

browser

use-after-free

vulnerability

remote code execution

nvd

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.6

Confidence

High

EPSS

0.004

Percentile

72.8%

JSON

An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.

Affected configurations

Nvd

Vulners

Node

webkitgtkwebkitgtkMatch2.30.3x64

VendorProductVersionCPE
webkitwebkit*cpe:2.3:a:webkit:webkit:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
webkit	webkit	*	cpe:2.3:a:webkit:webkit::::::::

CNA Affected

[
  {
    "product": "Webkit",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Webkit WebKitGTK 2.30.3"
      }
    ]
  }
]