Vulnerability · Published Feb 4, 2021 · Assigned by talos

CVE-2020-13579

High 8.8

In plain English

A high-severity integer overflow in Softmaker Software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 70.7% (higher than 99.4% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High

Exploit odds (30 days)70.7%top 0.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

An exploitable integer overflow vulnerability exists in the PlanMaker document parsing functionality of SoftMaker Office 2021’s PlanMaker application. A specially crafted document can cause the document parser perform arithmetic that may overflow which can result in an undersized heap allocation. Later when copying data from the file into this allocation, a heap-based buffer overflow will occur which can corrupt memory. These types of memory corruptions can allow for code execution under the context of the application. An attacker can entice the victim to open a document to trigger this vulnerability.

Affected products (as reported)

Vendor	Product	Versions
n/a	Softmaker Software	GmbH SoftMaker Office PlanMaker 2021 (Revision 1014)

Weakness: CWE-190 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1190 x_refsource_MISC