SB2021020401 - Multiple vulnerabilities in SoftMaker Office PlanMaker

Description

This security bulletin contains information about 9 secuirty vulnerabilities.

1) Integer overflow (CVE-ID: CVE-2020-13579)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in the PlanMaker document parsing functionality within 0x8011 and 0x820a record types. A remote attacker can use 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.

2) Heap-based buffer overflow (CVE-ID: CVE-2020-28587)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Office Art record-parsing functionality within the Version/Instance 0x001e. A remote attacker can use a specially crafted document, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

3) Heap-based buffer overflow (CVE-ID: CVE-2020-27250)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Office Art record-parsing functionality within the Version/Instance 0x0005 and 0x0016. A remote attacker can use a specially crafted document, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

4) Heap-based buffer overflow (CVE-ID: CVE-2020-27249)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Office Art record-parsing functionality within the Version/Instance 0x0004 and 0x0015. A remote attacker can use a specially crafted document, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

5) Heap-based buffer overflow (CVE-ID: CVE-2020-27248)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Office Art record-parsing functionality within the Version/Instance 0x0003 and 0x0014. A remote attacker can use a specially crafted document, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

6) Heap-based buffer overflow (CVE-ID: CVE-2020-27247)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Office Art record-parsing functionality within the Version/Instance 0x0002. A remote attacker can use a specially crafted document, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

7) Out-of-bounds write (CVE-ID: CVE-2020-13580)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the PlanMaker document parsing functionality within the 0x8010 record type. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.

8) Heap-based buffer overflow (CVE-ID: CVE-2020-13581)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the PlanMaker document parsing functionality within the 0x800d record. A remote attacker can use a specially crafted document, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

9) Heap-based buffer overflow (CVE-ID: CVE-2020-13586)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Excel Document SST Record 0x00fc functionality. A remote attacker can pass specially crafted file, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1190
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1210
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1191
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1192
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1197