SB2019071821 - Improper Verification of Cryptographic Signature in Suricata

Description

This security bulletin contains information about 1 security vulnerability.

1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2019-1010279)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Open Information Security Foundation Suricata prior to version 4.1.3 is affected by: Denial of Service - TCP/HTTP detection bypass. The impact is: An attacker can evade a signature detection with a specialy formed sequence of network packets. The component is: detect.c (https://github.com/OISF/suricata/pull/3625/commits/d8634daf74c882356659addb65fb142b738a186b). The attack vector is: An attacker can trigger the vulnerability by a specifically crafted network TCP session. The fixed version is: 4.1.3.

Remediation

Install update from vendor's website.

References

• https://github.com/OISF/suricata/pull/3625
• https://github.com/OISF/suricata/pull/3625/commits/d8634daf74c882356659addb65fb142b738a186b
• https://redmine.openinfosecfoundation.org/issues/2770