CVE-2023-2828Every `named` instance configured to run as a recursive resolver maintains a cache database holding the responses to the queries it has recently sent to authoritative servers.
Updated under an hour ago ()
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Every `named` instance configured to run as a recursive resolver maintains a cache database holding the responses to the queries it has recently sent to authoritative servers. The size limit for that cache database can be configured using the `max-cache-size` statement in the configuration file; it defaults to 90% of the total amount of memory available on the host. When the size of the cache reaches 7/8 of the configured limit, a cache-cleaning algorithm starts to remove expired and/or least-recently used RRsets from the cache, to keep memory use below the configured limit. It has been discovered that the effectiveness of the cache-cleaning algorithm used in `named` can be severely diminished by querying the resolver for specific RRsets in a certain order, effectively allowing the configured `max-cache-size` limit to be significantly exceeded. This issue affects BIND 9 versions 9.11.0 through 9.16.41, 9.18.0 through 9.18.15, 9.19.0 through 9.19.13, 9.11.3-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Oct 24, 2026
- First seen by InfoSec Signals
- Oct 24, 2026
Affected products
isc bind isc:bind | from 9.11.0 through 9.16.41; from 9.11.3 through 9.16.41; from 9.18.0 through 9.18.15; from 9.18.11 through 9.18.15; from 9.19.0 through 9.19.13 | NVD |
debian debian_linux debian:debian_linux | 10.0; 11.0; 12.0 | NVD |
fedoraproject fedora fedoraproject:fedora | 37; 38 | NVD |
netapp active_iq_unified_manager netapp:active_iq_unified_manager | all versions | NVD |
netapp h500s_firmware netapp:h500s_firmware | all versions | NVD |
netapp h700s_firmware netapp:h700s_firmware | all versions | NVD |
netapp h410s_firmware netapp:h410s_firmware | all versions | NVD |
netapp h410c_firmware netapp:h410c_firmware | all versions | NVD |
netapp h300s_firmware netapp:h300s_firmware | all versions | NVD |
References
- http://www.openwall.com/lists/oss-security/2023/06/21/6mailing-list, patch, third-party-advisory
- https://kb.isc.org/docs/cve-2023-2828vendor-advisory
- https://lists.debian.org/debian-lts-announce/2023/07/msg00021.htmlmailing-list, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEFCEVCTYEMKTWA7V7EYPI5YQQ4JWDLI/mailing-list, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3K6AJK7RRSR53HRF5GGKPA6PDUDWOD2/mailing-list, third-party-advisory
- https://security.netapp.com/advisory/ntap-20230703-0010/third-party-advisory
- https://www.debian.org/security/2023/dsa-5439third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.