High severity · published Nov 14, 2021
CVE-2021-43390
An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance Drawings SDK before 2022.11
7.8
CVSS
1.7%
EPSS
No
On KEV
Description
An Out-of-Bounds Write vulnerability exists when reading a DGN file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists within the parsing of DGN files. Crafted data in a DGN file and lack of proper validation of input data can trigger a write operation past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DS
Drawings Software Development Kit · Opendesign
before 2022.11 · source: NVD
Affected product
DS
Drawings Software Development Kit
Opendesign
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43390
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43390
Vendor Advisory
https://www.opendesign.com/security-advisories
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1347/
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1348/
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1362/
More from Drawings Software Development Kit
7.8
CVE-2022-23095
Open Design Alliance Drawings SDK before 2022.12.1 mishandles the loading of JPG files
7.8
CVE-2021-43391
An Out-of-Bounds Read vulnerability exists when reading a DXF file using Open Design Alliance Drawings SDK before 2022.11
7.8
CVE-2021-43336
An Out-of-Bounds Write vulnerability exists when reading a DXF or DWG file using Open Design Alliance Drawings SDK before 2022.11
7.8
CVE-2021-43280
A stack-based buffer overflow vulnerability exists in the DWF file reading procedure in Open Design Alliance Drawings SDK before 2022.8
7.8
CVE-2021-43275
A Use After Free vulnerability exists in the DGN file reading procedure in Open Design Alliance Drawings SDK before 2022.8