Summary
Successful exploitation of these vulnerabilities could allow an attacker to disclose sensitive information, remotely execute arbitrary code, or crash the device.
Vulnerabilities 4
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Unscored —
Some parsing functions in the affected product do not check the return value of malloc and the thread handling the mess…
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Unscored —
The affected product has uncontrolled resource consumption issues, which may allow an attacker to cause a denial-of-ser…
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Unscored —
The affected product is vulnerable to a heap-based buffer overflow, which may allow an attacker to manipulate memory wi…
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Unscored —
The affected product is vulnerable to an out-of-bounds read, which may allow an attacker to obtain and disclose sensiti…
Revision history
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#1
ICSA-21-021-03 Honeywell Matrikon OPC Tunneller
References
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ICS Advisory ICSA-21-021-03 Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-21-021-03
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Recommended Practices
https://us-cert.cisa.gov/ics/alerts/ICS-ALERT-10-301-01
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Recommended Practices
https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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Recommended Practices
https://us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B