CVE-2017-5872 Denial of service in n/a
Remote attackers can cause network connectivity disruption in Unisys ClearPath MCP systems by sending malformed TLS client hello packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-5872?
CVE-2017-5872 is a high-severity denial of service vulnerability in n/a, published on 10 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-20
Which versions are affected by CVE-2017-5872?
It affects 1 product.
Products include Unisys Clearpath Mcp.
How do I fix CVE-2017-5872?
No fix has been published for CVE-2017-5872 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-5872 being exploited?
There is no known exploitation of CVE-2017-5872 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-crg9-j947-rwjm.