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cvelistTalosCVELIST:CVE-2020-13544
HistoryJan 06, 2021 - 2:48 p.m.

CVE-2020-13544

2021-01-0614:48:45
CWE-194
talos
www.cve.org
3
exploitable vulnerability
softmaker office 2021
textmaker application
sign extension
document parsing
heap buffer_overflow

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

EPSS

0.002

Percentile

53.2%

An exploitable sign extension vulnerability exists in the TextMaker document parsing functionality of SoftMaker Office 2021’s TextMaker application. A specially crafted document can cause the document parser to sign-extend a length used to terminate a loop, which can later result in the loop’s index being used to write outside the bounds of a heap buffer during the reading of file data. An attacker can entice the victim to open a document to trigger this vulnerability.

CNA Affected

[
  {
    "product": "Softmaker",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "SoftMaker Software GmbH SoftMaker Office TextMaker 2021 (revision 1014)"
      }
    ]
  }
]

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

EPSS

0.002

Percentile

53.2%

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