Vulnerability Details : CVE-2022-3924
This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero.
If the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure.
This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.
Products affected by CVE-2022-3924
- cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*
- cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*
- cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*
- cpe:2.3:a:isc:bind:9.16.13:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.16.21:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.16.32:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.16.14:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.16.36:s1:*:*:supported_preview:*:*:*
- cpe:2.3:a:isc:bind:9.16.12:s1:*:*:supported_preview:*:*:*
Threat overview for CVE-2022-3924
Top countries where our scanners detected CVE-2022-3924
Top open port discovered on systems with this issue
53
IPs affected by CVE-2022-3924 99,203
Threat actors abusing to this issue?
Yes
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affected by CVE-2022-3924!
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2022-3924
0.59%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-3924
| 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
|
NIST | |
|
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-2022-3924
-
The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2022-3924
-
https://kb.isc.org/docs/cve-2022-3924
CVE-2022-3924: named configured to answer from stale cache may terminaVendor Advisory
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