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CVE-2011-2961: Sunway pNetPower can crash or be hijacked via UDP

CVE-2011-2961 · published 15 years ago

Summary

The AngelServer.exe component in Sunway pNetPower version 6.0.11.3 can be forced to stop working or potentially run unwanted code when it receives a specially crafted UDP packet. This can be done by anyone on the network without needing to log in. Install the latest update from Sunway and consider blocking unnecessary UDP traffic to protect your system.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
sunwayland	pnetpower	All versions `cpe:2.3:a:sunwayland:pnetpower::::::::`

Original advisory text

Heap-based buffer overflow in AngelServer.exe 6.0.11.3 in Sunway pNetPower allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted UDP packet.

References

http://secunia.com/advisories/44990 Vendor Advisory
http://securitytracker.com/id?1025673
http://www.cnvd.org.cn/vulnerability/CNVD-2011-05348
http://www.osvdb.org/73123
http://www.sunwayland.com.cn/news_info_.asp?Nid=3593 Vendor Advisory
http://www.us-cert.gov/control_systems/pdf/ICSA-11-167-01.pdf US Government Resource

Fix within

Internet-facing 3 days

Internal 60 days

Not known to be exploited
Can be exploited automatically (estimated)
Gives an attacker full control (estimated)

Severity

10.0 Critical

Exploitation

6% chance of attack within 30 days

Type

CWE-119Buffer Overflow

Timeline

Published29 Jul 2011

Updated3 Nov 2026

First seen29 Sep 2026

Sources

CVE-2011-2961 · NVD

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