🛡️ CVE-2023-2911
🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-787 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow. This issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-787
Public Exploit ✅ No
Source NVD
Published 2023-06-21
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
active-iq-unified-manager
bind 9.18.11 9.18.15
debian-linux
fedora
h300s-firmware
h410c-firmware
h410s-firmware
h500s-firmware
h700s-firmware

References

Mailing List, Patch, Third Party Advisory http://www.openwall.com/lists/oss-security/2023/06/21/6
Mailing List, Patch, Third Party Advisory http://www.openwall.com/lists/oss-security/2023/06/21/6

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