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High severity · published Jan 26, 2023
CVE-2022-3736
BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG…
7.5
CVSS
48.7%
EPSS
No
On KEV
Description
BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query. 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.
CVSS 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 interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)48.7% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Bind · Isc
9.16.12 before 9.16.37; 9.18.0 before 9.18.11; 9.19.0 before 9.19.9; 9.16.11; 9.16.13; 9.16.14; +3 more · source: NVD
Affected product
BI
Bind
Isc
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-3736
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-3736
Vendor Advisory
https://kb.isc.org/docs/cve-2022-3736
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