CVE-2021-45117

CWE-476 — NULL Pointer Dereference3 documents3 sources
Severity
6.5MEDIUM
EPSS
0.5%
top 33.11%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Opcfoundation Ua-nodesetSiemens Simatic NET PCSiemens Telecontrol Server Basic
Timeline
PublishedMar 21
Latest updateMar 22

Description

The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages3 packages

▶NVDsiemens/simatic_net_pc4 versions+3

Patches

Patch: cert-portal.siemens.com ↗Patch: files.opcfoundation.org ↗Patch: cert-portal.siemens.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-v4v7-f2qj-8939: The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases↗2022-03-22
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CVEList
CVE-2021-45117: The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases↗2022-03-21
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CVE-2021-45117 (MEDIUM CVSS 6.5) | The OPC autogenerated ANSI C stack | cvebase.io