Integer underflow in Suricata - CVE-2019-10053
Published: May 13, 2019 / Updated: August 8, 2020
Vulnerability identifier: #VU35905
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-10053
CWE-ID: CWE-191
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Open Information Security Foundation
Affected software:
Suricata
Suricata
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
An issue was discovered in Suricata 4.1.x before 4.1.4. If the input of the function SSHParseBanner is composed only of a character, then the program runs into a heap-based buffer over-read. This occurs because the erroneous search for results in an integer underflow.
How to mitigate CVE-2019-10053
Install update from vendor's website.