CVE-2020-12663
HIGH severity · CVSS 7.5 · CWE-835
7.5CVSS HIGH
Summary
Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://www.openwall.com/lists/oss-security/2020/05/19/5 ↗
Additional information
- NVD record
- http://www.openwall.com/lists/oss-security/2020/05/19/5Patch
- https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txtAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00017.htmlAdvisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.ascAdvisory