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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2023-6516

Change History

New CVE Received by NIST 2/13/2024 9:15:46 AM

Action Type Old Value New Value
Added CVSS V3.1 

								
							
							
								
							
						
								
							
								
Internet Systems Consortium (ISC) AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

								
								
					

					

						Added
						Description
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
To keep its cache database efficient, `named` running as a recursive resolver occasionally attempts to clean up the database. It uses several methods, including some that are asynchronous: a small chunk of memory pointing to the cache element that can be cleaned up is first allocated and then queued for later processing. It was discovered that if the resolver is continuously processing query patterns triggering this type of cache-database maintenance, `named` may not be able to handle the cleanup events in a timely manner. This in turn enables the list of queued cleanup events to grow infinitely large over time, allowing the configured `max-cache-size` limit to be significantly exceeded.
This issue affects BIND 9 versions 9.16.0 through 9.16.45 and 9.16.8-S1 through 9.16.45-S1.

								
								
					

					

						Added
						Reference
						
							
							
								
							
								

								
							
							
								
							
						
								
							
								
Internet Systems Consortium (ISC) https://kb.isc.org/docs/cve-2023-6516 [No types assigned]