Vulnerabilities > CVE-2021-32938 - Out-of-bounds Read vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
HIGH Summary
Drawings SDK (All versions prior to 2022.4) are vulnerable to an out-of-bounds read due to parsing of DWG files resulting from the lack of proper validation of user-supplied data. This can result in a read past the end of an allocated buffer and allows attackers to cause a denial-of service condition or read sensitive information from memory.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02
- https://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdf
- https://www.zerodayinitiative.com/advisories/ZDI-21-980/
- https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-491245.pdf