CVE-2023-6516

Name
CVE-2023-6516
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.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
vendor-advisory https://kb.isc.org/docs/cve-2023-6516
security-officer@isc.org http://www.openwall.com/lists/oss-security/2024/02/13/1
security-officer@isc.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/
security-officer@isc.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/
security-officer@isc.org https://security.netapp.com/advisory/ntap-20240503-0008/

Match rules

CPE URI Source package Min version Max version
bind-9 >= 9.16.0 <= 9.16.45
bind-9 >= 9.16.8-S1 <= 9.16.45-S1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
bind 3.16-main 9.16.48-r0 None fixed