What’s Vulnerable › Vulnerabilities

CVE-2017-3136: An error handling synthesized records could cause an assertion failure when using DNS64 with "break-dnssec yes;"

• Severity: medium (CVSS 5.9 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 11.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-01-16 · updated 2026-06-17
• Weakness: CWE-617

Description

A query with a specific set of characteristics could cause a server using DNS64 to encounter an assertion failure and terminate. An attacker could deliberately construct a query, enabling denial-of-service against a server if it was configured to use the DNS64 feature and other preconditions were met. Affects BIND 9.8.0 -> 9.8.8-P1, 9.9.0 -> 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.0 -> 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0 -> 9.11.0-P3, 9.11.1b1->9.11.1rc1, 9.9.3-S1 -> 9.9.9-S8.

Affected products

• Debian Linux: 8.0
• ISC BIND: from 9.8.0 through 9.8.8; from 9.9.0 through 9.9.9; from 9.10.0 through 9.10.4; 9.8.0-p1, 9.9.0-p1, 9.9.0-p2, 9.9.0-p3, 9.9.0-p4, 9.9.0-p5 (+19)
• NetApp Data Ontap Edge: all versions
• NetApp Element Software: all versions
• NetApp Oncommand Balance: all versions
• RedHat Enterprise Linux Desktop: 6.0, 7.0
• RedHat Enterprise Linux Server: 6.0, 7.0
• RedHat Enterprise Linux Server Aus: 7.3, 7.4, 7.6
• RedHat Enterprise Linux Server Eus: 7.3, 7.4, 7.5, 7.6
• RedHat Enterprise Linux Server Tus: 7.3, 7.6
• RedHat Enterprise Linux Workstation: 6.0, 7.0

References

• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html
• http://www.securityfocus.com/bid/97653
• http://www.securitytracker.com/id/1038259
• https://access.redhat.com/errata/RHSA-2017:1095
• https://access.redhat.com/errata/RHSA-2017:1105
• https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03747en_us
• https://kb.isc.org/docs/aa-01465
• https://security.gentoo.org/glsa/201708-01
• https://security.netapp.com/advisory/ntap-20180802-0002/
• https://www.debian.org/security/2017/dsa-3854
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html

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