Is CVE-2023-2911 actively exploited?

CVE-2023-2911 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2023-2911?

CVE-2023-2911 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2023-2911?

Patch guidance is available from isc security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-2911.

Fix CVE-2023-2911 - HIGH isc bind

Q: Which products are affected by CVE-2023-2911?

16 products: isc bind, isc bind, isc bind, isc bind, debian debian linux, and 11 more.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: ISC
Published: 6/21/2023
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

isc : bindisc : bindisc : bindisc : binddebian : debian_linuxdebian : debian_linuxfedoraproject : fedorafedoraproject : fedoradebian : debian_linuxdebian : debian_linuxnetapp : active_iq_unified_managernetapp : h700s_firmwarenetapp : h300s_firmwarenetapp : h410c_firmwarenetapp : h410s_firmwarenetapp : h500s_firmware

Remediation Guidance

Executive Summary

View on NIST NVD