CVE-2018-0256 Denial of service in Cisco Packet Data Network Gateway
Unauthenticated remote attackers can cause a denial of service by sending crafted packets to Cisco Packet Data Network Gateways.
- 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-2018-0256?
CVE-2018-0256 is a medium-severity denial of service vulnerability in Cisco Packet Data Network Gateway, published on 19 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the peer-to-peer message processing functionality of Cisco Packet Data Network Gateway could allow an unauthenticated, remote attacker to cause the Session Manager (SESSMGR) process on an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to incorrect validation of peer-to-peer packet headers. An attacker could exploit this vulnerability by sending a crafted peer-to-peer packet through an affected device. A successful exploit could allow the attacker to cause the SESSMGR process on the affected device to restart unexpectedly, which could briefly impact traffic while the SESSMGR process restarts and result in a DoS condition. Cisco Bug IDs: CSCvg88786.
Weakness: CWE-20
Which versions are affected by CVE-2018-0256?
It affects 1 product.
Products include Cisco Asr 5000 Series Software.
How do I fix CVE-2018-0256?
No fix has been published for CVE-2018-0256 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-2018-0256 being exploited?
There is no known exploitation of CVE-2018-0256 in the wild and no public exploit code.
Other vulnerabilities in Cisco Packet Data Network Gateway
- CVE-2017-3819 Privilege escalation in Cisco StarOS
- CVE-2017-6612 Open redirect in Cisco ASR 5000 Series Aggregation Services Routers
- CVE-2017-6672 Security feature bypass in Cisco ASR 5000 Series Aggregation Services Routers
- CVE-2016-6467 Denial of service in Cisco Aggregation Services Router (ASR) 5000 Series Switch
- CVE-2016-9203 Denial of service in Cisco ASR 5000
Sources
Also known as GHSA-x5fh-wf9q-7rgc.