CVE-2017-15105

A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.

• CWE-358
• CWE-20

• http://www.securityfocus.com/bid/102817Third Party Advisory, VDB Entry
• https://lists.debian.org/debian-lts-announce/2018/01/msg00039.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/02/msg00022.htmlMailing List, Third Party Advisory
• https://unbound.net/downloads/CVE-2017-15105.txtPatch, Vendor Advisory
• https://usn.ubuntu.com/3673-1/Third Party Advisory
• http://www.securityfocus.com/bid/102817Third Party Advisory, VDB Entry
• https://lists.debian.org/debian-lts-announce/2018/01/msg00039.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2019/02/msg00022.htmlMailing List, Third Party Advisory
• https://unbound.net/downloads/CVE-2017-15105.txtPatch, Vendor Advisory
• https://usn.ubuntu.com/3673-1/Third Party Advisory

Published

Jan 23, 2018

Last Modified

Jun 17, 2026

Status

Modified

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