CVE-2020-28598: prusa3d prusaslicer Heap-based Buffer Overflow

Vulnerability summary

CVE-2020-28598 is a high (CVSS 8.8) Heap-based Buffer Overflow vulnerability in prusa3d prusaslicer. EPSS estimates a 1.27% chance of exploitation in the next 30 days, higher than 69.6% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 08-07-2021
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

An out-of-bounds write vulnerability exists in the Admesh stl_fix_normal_directions() functionality of Prusa Research PrusaSlicer 2.2.0 and Master (commit 4b040b856). A specially crafted AMF file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.