Buffer Overflow in ISC BIND Leads to Potential Denial of Service Vulnerability
CVE-2016-2776
Key Information:
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Summary
A flaw in the buffer.c file of ISC BIND versions prior to 9.9.9-P3, 9.10.4-P3, and 9.11.0rc3 fails to properly construct DNS response packets. This vulnerability creates an opportunity for remote attackers to send crafted DNS queries, leading to assertion failures that can cause the BIND daemon to exit unexpectedly, resulting in a denial of service. This issue could severely disrupt services relying on BIND for DNS management, highlighting the need for timely updates and patches.
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
EPSS Score
90% chance of being exploited in the next 30 days.
CVSS V3.1
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved