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5.8 Medium

CVE-2023-20270 A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3…

Description

A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error-checking when the Snort 3 detection engine is processing SMB traffic. An attacker could exploit this vulnerability by sending a crafted SMB packet stream through an affected device. A successful exploit could allow the attacker to cause the Snort process to reload, resulting in a DoS condition.

Affected products and versions

Product Affected versions Fixed in
Cisco Firepower Threat Defense Software 7.3 7.3.0 → 7.3.1.1 No fix stated
Cisco Firepower Threat Defense Software 7.2 7.2.0 → 7.2.3 No fix stated
Cisco Firepower Threat Defense Software 7.1 7.1.0 → 7.1.0.3 No fix stated

References

Timeline

  1. Published
  2. Last modified

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