CVE-2023-2828

Katalog CVE

CVSS 7.5 · High EPSS 3,6%

Kerentanan Allocation of Resources Without Limits or Throttling pada isc bind, debian linux +7 lainnya. Skor CVSS 3.1 7.5 (High) menurut isc.org.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

21 Juni 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber isc.org
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-770: Allocation of Resources Without Limits or Throttling

EPSS (30 hari)

3,6% peluang dieksploitasi; lebih tinggi dari 89,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://kb.isc.org/docs/cve-2023-2828 advisory vendor
• http://www.openwall.com/lists/oss-security/2023/06/21/6 mailing list · patch · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2023/07/msg00021.html mailing list · advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEFCEVCTYEMKTWA... mailing list · advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3K6AJK7RRSR53H... mailing list · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20230703-0010/ advisory pihak ketiga
• https://www.debian.org/security/2023/dsa-5439 advisory pihak ketiga