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CVE-2023-6516 Detail
Awaiting Analysis
This vulnerability is currently awaiting analysis. DescriptionTo 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. Severity
CVSS 3.x Severity and Metrics:
CNA: Internet Systems Consortium (ISC)
Base
Score: 7.5 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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Quick InfoCVE Dictionary Entry:CVE-2023-6516 NVD Published Date: 02/13/2024 NVD Last Modified: 03/03/2024 Source: Internet Systems Consortium (ISC) |