What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-09-21 · updated 2026-06-17
• Weakness: CWE-613

Description

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

Affected products

• Fedoraproject Fedora: 35, 36, 37
• ISC BIND: from 9.16.14 before 9.16.33; from 9.18.0 before 9.18.7; from 9.19.0 before 9.19.5; 9.16.14-s1, 9.16.21-s1, 9.16.32-s1 — fixed in 9.16.33, 9.18.7, 9.19.5

How to fix

Upgrade to a fixed version: ISC BIND 9.16.33, 9.18.7, 9.19.5. Check the vendor advisory for mitigations.

References

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

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