BIND 9 resolvers configured to answer from stale cache with zero stale-answer-client-timeout may terminate unexpectedly
CVE-2022-3080

7.5HIGH

Key Information:

Vendor

Isc
Status
Bind9
Vendor
CVE Published:
21 September 2022

Badges

👾 Exploit Exists

What is CVE-2022-3080?

By sending specific queries to the resolver, an attacker can cause named to crash.

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Affected Version(s)

BIND9 Open Source Branch 9.16 9.16.14 through versions before 9.16.33

BIND9 Open Source Branch 9.18 9.18.0 through versions before 9.18.7

BIND9 Supported Preview Branch 9.16-S 9.16.14-S1 through versions before 9.16.33-S1

References

https://kb.isc.org/docs/cve-2022-3080
http://www.openwall.com/lists/oss-security/2022/09/21/3
mailing-list
https://www.debian.org/security/2022/dsa-5235
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ISC would like to thank Maksym Odinintsev for bringing this vulnerability to our attention.
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