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TalosCVE-2021-21831

HistoryAug 05, 2021 - 9:15 p.m.

CVE-2021-21831

2021-08-0521:15:10

CWE-416

talos

web.nvd.nist.gov

cve-2021-21831

foxit software

pdf reader

vulnerability

code execution

javascript

browser plugin

memory reuse

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

8.7

Confidence

High

EPSS

0.004

Percentile

73.4%

JSON

A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 10.1.3.37598. A specially crafted PDF document can trigger the reuse of previously freed memory, which can lead to arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.

Affected configurations

Nvd

Vulners

Node

foxitpdf_readerMatch10.1.3.37598

VendorProductVersionCPE
foxitpdf_reader10.1.3.37598cpe:2.3:a:foxit:pdf_reader:10.1.3.37598:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
foxit	pdf_reader	10.1.3.37598	cpe:2.3:a:foxit:pdf_reader:10.1.3.37598:::::::*

CNA Affected

[
  {
    "product": "Foxit",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Foxit Reader 10.1.3.37598"
      }
    ]
  }
]

References

talosintelligence.com/vulnerability_reports/TALOS-2021-1294

Social References

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

8.7

Confidence

High

EPSS

0.004

Percentile

73.4%

JSON

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