In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation.
| Date Added | Due Date | Vulnerability Name | Required Action |
|---|---|---|---|
| N/A |
| Type | Version | Base score | Base severity | Vector |
|---|---|---|---|---|
| Secondary | 3.1 | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Secondary | 3.1 | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Primary | 2.0 | 5.0 | MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| CWE ID | Type | Source |
|---|---|---|
| CWE-252 | Primary | info@cert.vde.com |
| Hyperlink | Source | Resource |
|---|---|---|
| https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16876&token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7&download= | info@cert.vde.com | Vendor Advisory |
| https://www.tenable.com/security/research/tra-2021-47 | info@cert.vde.com | Exploit Third Party Advisory |
| https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16876&token=a3f1d937f95e7034879f4f2ea8e5a99b168256a7&download= | af854a3a-2127-422b-91ae-364da2661108 | Vendor Advisory |
| https://www.tenable.com/security/research/tra-2021-47 | af854a3a-2127-422b-91ae-364da2661108 | Exploit Third Party Advisory |