CVE-2017-5872

HIGH

Unisys ClearPath MCP TCP-IP-SW DoS via TLS 1.2 Client Hello Signature Algorithms Extension

Title source: llm

Description

The TCP/IP networking module in Unisys ClearPath MCP systems with TCP-IP-SW 57.1 before 57.152, 58.1 before 58.142, or 59.1 before 59.172, when running a TLS 1.2 service, allows remote attackers to cause a denial of service (network connectivity disruption) via a client hello with a signature_algorithms extension above those defined in RFC 5246, which triggers a full memory dump.

References (2)

Core 2

Core References

Vendor Advisory x_refsource_confirm

https://public.support.unisys.com/common/public/vulnerability/NVD_Detail_Rpt.aspx?ID=42

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/96782

Scores

CVSS v3 7.5

EPSS 0.0155

EPSS Percentile 72.0%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-20

Status published

Products (3)

unisys/clearpath_mcp 57.1

unisys/clearpath_mcp 58.1

unisys/clearpath_mcp 59.1

Published Mar 10, 2017

Tracked Since Feb 18, 2026