Unrated severityNVD Advisory· Published Feb 13, 2024· Updated Feb 13, 2025
Specific recursive query patterns may lead to an out-of-memory condition
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
61- osv-coords59 versionspkg:apk/chainguard/bindpkg:apk/chainguard/bind-devpkg:apk/chainguard/bind-dnssec-rootpkg:apk/chainguard/bind-dnssec-toolspkg:apk/chainguard/bind-docpkg:apk/chainguard/bind-libspkg:apk/chainguard/bind-pluginspkg:apk/chainguard/bind-toolspkg:apk/wolfi/bindpkg:apk/wolfi/bind-devpkg:apk/wolfi/bind-dnssec-rootpkg:apk/wolfi/bind-dnssec-toolspkg:apk/wolfi/bind-docpkg:apk/wolfi/bind-libspkg:apk/wolfi/bind-pluginspkg:apk/wolfi/bind-toolspkg:rpm/almalinux/bindpkg:rpm/almalinux/bind9.16pkg:rpm/almalinux/bind9.16-chrootpkg:rpm/almalinux/bind9.16-develpkg:rpm/almalinux/bind9.16-dnssec-utilspkg:rpm/almalinux/bind9.16-docpkg:rpm/almalinux/bind9.16-libspkg:rpm/almalinux/bind9.16-licensepkg:rpm/almalinux/bind9.16-utilspkg:rpm/almalinux/bind-chrootpkg:rpm/almalinux/bind-develpkg:rpm/almalinux/bind-dnssec-docpkg:rpm/almalinux/bind-dnssec-utilspkg:rpm/almalinux/bind-docpkg:rpm/almalinux/bind-dyndb-ldappkg:rpm/almalinux/bind-libspkg:rpm/almalinux/bind-licensepkg:rpm/almalinux/bind-utilspkg:rpm/almalinux/python3-bindpkg:rpm/almalinux/python3-bind9.16pkg:rpm/opensuse/bind&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/bind&distro=openSUSE%20Tumbleweedpkg:rpm/suse/bind&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP5pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSSpkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/bind&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4pkg:rpm/suse/bind&distro=SUSE%20Manager%20Client%20Tools%20for%20SLE%20Micro%205pkg:rpm/suse/bind&distro=SUSE%20Manager%20Proxy%204.3pkg:rpm/suse/bind&distro=SUSE%20Manager%20Server%204.3pkg:rpm/suse/libuv&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/libuv&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/libuv&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/libuv&distro=SUSE%20Manager%20Client%20Tools%20for%20SLE%20Micro%205
< 9.18.24-r0+ 58 more
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 9.18.24-r0
- (no CPE)range: < 32:9.16.23-14.el9_3.4
- (no CPE)range: < 32:9.16.23-0.16.el8_9.2.alma.1
- (no CPE)range: < 32:9.16.23-0.16.el8_9.2.alma.1
- (no CPE)range: < 32:9.16.23-0.16.el8_9.2.alma.1
- (no CPE)range: < 32:9.16.23-0.16.el8_9.2.alma.1
- (no CPE)range: < 32:9.16.23-0.16.el8_9.2.alma.1
- (no CPE)range: < 32:9.16.23-0.16.el8_9.2.alma.1
- (no CPE)range: < 32:9.16.23-0.16.el8_9.2.alma.1
- (no CPE)range: < 32:9.16.23-0.16.el8_9.2.alma.1
- (no CPE)range: < 32:9.16.23-14.el9_3.4
- (no CPE)range: < 32:9.16.23-14.el9_3.4
- (no CPE)range: < 32:9.16.23-14.el9_3.4
- (no CPE)range: < 32:9.16.23-14.el9_3.4
- (no CPE)range: < 32:9.16.23-14.el9_3.4
- (no CPE)range: < 11.9-8.el9_3.3.alma.1
- (no CPE)range: < 32:9.16.23-14.el9_3.4
- (no CPE)range: < 32:9.16.23-14.el9_3.4
- (no CPE)range: < 32:9.16.23-14.el9_3.4
- (no CPE)range: < 32:9.16.23-14.el9_3.4
- (no CPE)range: < 32:9.16.23-0.16.el8_9.2.alma.1
- (no CPE)range: < 9.16.48-150500.8.16.1
- (no CPE)range: < 9.18.24-1.1
- (no CPE)range: < 9.16.6-150300.22.44.1
- (no CPE)range: < 9.16.6-150000.12.74.2
- (no CPE)range: < 9.16.6-150300.22.44.1
- (no CPE)range: < 9.16.48-150400.5.40.1
- (no CPE)range: < 9.16.48-150400.5.40.1
- (no CPE)range: < 9.16.48-150500.8.16.1
- (no CPE)range: < 9.16.6-150300.22.44.1
- (no CPE)range: < 9.16.48-150500.8.16.1
- (no CPE)range: < 9.16.6-150000.12.74.2
- (no CPE)range: < 9.16.6-150300.22.44.1
- (no CPE)range: < 9.16.48-150400.5.40.1
- (no CPE)range: < 9.16.6-150000.12.74.2
- (no CPE)range: < 9.16.6-150300.22.44.1
- (no CPE)range: < 9.16.48-150400.5.40.1
- (no CPE)range: < 9.16.6-150000.12.74.2
- (no CPE)range: < 9.16.48-150400.5.40.1
- (no CPE)range: < 9.16.48-150400.5.40.1
- (no CPE)range: < 1.18.0-150000.3.2.1
- (no CPE)range: < 1.18.0-150000.3.2.1
- (no CPE)range: < 1.18.0-150000.3.2.1
- (no CPE)range: < 1.18.0-150000.3.2.1
Patches
Vulnerability mechanics
References
5- kb.isc.org/docs/cve-2023-6516mitrevendor-advisory
- www.openwall.com/lists/oss-security/2024/02/13/1mitre
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/mitre
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/mitre
- security.netapp.com/advisory/ntap-20240503-0008/mitre
News mentions
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