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.
Published 2023-06-21 17:15:48
Updated 2023-07-03 19:09:45
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Threat overview for CVE-2023-2911

Top countries where our scanners detected CVE-2023-2911
Top open port discovered on systems with this issue 53
IPs affected by CVE-2023-2911 49,597
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2023-2911!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2023-2911

0.11%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-2911

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
Internet Systems Consortium (ISC)

CWE ids for CVE-2023-2911

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2023-2911

Products affected by CVE-2023-2911

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