CVE-2022-3080

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

Description

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

Remediation

Solution:

  • Upgrade to the patched release most closely related to your current version of BIND: BIND 9.16.33, BIND 9.18.7, BIND 9.19.5, or for BIND Supported Preview Edition (a special feature preview branch of BIND provided to eligible ISC support customers): BIND 9.16.33-S1.

Workaround:

  • Setting stale-answer-client-timeout to off or to an integer greater than 0 will prevent BIND from crashing due to this issue.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.09%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory isc.org
Affected: ISC BIND9
Published at:
Updated at:

References

Link Tags
https://kb.isc.org/docs/cve-2022-3080 patch vendor advisory
http://www.openwall.com/lists/oss-security/2022/09/21/3 mailing list third party advisory patch
https://www.debian.org/security/2022/dsa-5235 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CV4GQWBPF7Y52J2FA24U6UMHQAOXZEF7/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MRHB6J4Z7BKH4HPEKG5D35QGRD6ANNMT/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZJQNUASODNVAWZV6STKG5SD6XIJ446S/ vendor advisory
https://security.gentoo.org/glsa/202210-25 third party advisory vendor advisory
https://security.netapp.com/advisory/ntap-20240621-0002/

Frequently Asked Questions

What is the severity of CVE-2022-3080?
CVE-2022-3080 has been scored as a high severity vulnerability.
How to fix CVE-2022-3080?
To fix CVE-2022-3080: Upgrade to the patched release most closely related to your current version of BIND: BIND 9.16.33, BIND 9.18.7, BIND 9.19.5, or for BIND Supported Preview Edition (a special feature preview branch of BIND provided to eligible ISC support customers): BIND 9.16.33-S1.
Is CVE-2022-3080 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-3080 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-3080?
CVE-2022-3080 affects ISC BIND9.
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