Vulnerability · Published Feb 4, 2021 · Assigned by talos
CVE-2020-13580
High 8.8
In plain English
A high-severity out-of-bounds write 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).
Official description
An exploitable heap-based buffer 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 to explicitly trust a length from a particular record type and use it to write a 16-bit null relative to a buffer allocated on the stack. Due to a lack of bounds-checking on this value, this can allow an attacker to write to memory outside of the buffer and controllably corrupt memory. This can allow an attacker to earn 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-787 · 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-2020-1191 x_refsource_MISC