Multiple vulnerabilities in SoftMaker Office TextMaker
| Risk | High |
| Patch available | NO |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2020-13544 CVE-2020-13545 CVE-2020-13546 |
| CWE-ID | CWE-194 CWE-196 CWE-190 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
TextMaker 2021 Client/Desktop applications / Office applications |
| Vendor | SoftMaker |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Unexpected Sign Extension
EUVDB-ID: #VU49296
Risk: High
CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-13544
CWE-ID:
CWE-194 - Unexpected Sign Extension
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to unexpected sign extension in the TextMaker document parsing functionality within record 0x001f. A remote attacker can trick a victim to open a specially crafted document and cause the document parser to sign-extend a length used to terminate a loop, resulting in the loop’s index being used to write outside the bounds of a heap buffer during the reading of file data.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsTextMaker 2021: revision 1014
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1161
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website or open a file.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Unsigned to Signed Conversion Error
EUVDB-ID: #VU49297
Risk: High
CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-13545
CWE-ID:
CWE-196 - Unsigned to Signed Conversion Error
Exploit availability: No
DescriptionThe vulnerability exists due to unsigned to signed conversion error in the TextMaker document parsing functionality within record 0x003f. A remote attacker can trick a victim to open a specially crafted document and cause the document parser to miscalculate a length used to allocate a buffer, leading to a heap-based memory corruption.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsTextMaker 2021: revision 1014
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1162
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website or open a file.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Integer overflow
EUVDB-ID: #VU49298
Risk: High
CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-13546
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in the TextMaker document parsing functionality within record 0x002a. A remote attacker can trick a victim to open a specially crafted document, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsTextMaker 2021: revision 1014
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1163
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website or open a file.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
