CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
88.8%
Debian Security Advisory DSA-4694-1 [email protected]
https://www.debian.org/security/ Moritz Muehlenhoff
May 26, 2020 https://www.debian.org/security/faq
Package : unbound
CVE ID : CVE-2020-12662 CVE-2020-12663
Two vulnerabiliites have been discovered in Unbound, a recursive-only
caching DNS server; a traffic amplification attack against third party
authoritative name servers (NXNSAttack) and insufficient sanitisation
of replies from upstream servers could result in denial of service via
an infinite loop.
The version of Unbound in the oldstable distribution (stretch) is
no longer supported. If these security issues affect your setup, you
should upgrade to the stable distribution (buster).
For the stable distribution (buster), these problems have been fixed in
version 1.9.0-2+deb10u2.
We recommend that you upgrade your unbound packages.
For the detailed security status of unbound please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/unbound
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | mips | unbound-host-dbgsym | <Â 1.9.0-2+deb10u2 | unbound-host-dbgsym_1.9.0-2+deb10u2_mips.deb |
Debian | 10 | amd64 | unbound-host-dbgsym | <Â 1.9.0-2+deb10u2 | unbound-host-dbgsym_1.9.0-2+deb10u2_amd64.deb |
Debian | 10 | armhf | unbound | <Â 1.9.0-2+deb10u2 | unbound_1.9.0-2+deb10u2_armhf.deb |
Debian | 9 | amd64 | unbound-host | <Â 1.9.0-2+deb10u2~deb9u1 | unbound-host_1.9.0-2+deb10u2~deb9u1_amd64.deb |
Debian | 10 | amd64 | python3-unbound | <Â 1.9.0-2+deb10u2 | python3-unbound_1.9.0-2+deb10u2_amd64.deb |
Debian | 10 | arm64 | python-unbound | <Â 1.9.0-2+deb10u2 | python-unbound_1.9.0-2+deb10u2_arm64.deb |
Debian | 10 | mips64el | unbound-host-dbgsym | <Â 1.9.0-2+deb10u2 | unbound-host-dbgsym_1.9.0-2+deb10u2_mips64el.deb |
Debian | 10 | mips64el | python-unbound-dbgsym | <Â 1.9.0-2+deb10u2 | python-unbound-dbgsym_1.9.0-2+deb10u2_mips64el.deb |
Debian | 10 | s390x | libunbound-dev | <Â 1.9.0-2+deb10u2 | libunbound-dev_1.9.0-2+deb10u2_s390x.deb |
Debian | 10 | amd64 | python-unbound-dbgsym | <Â 1.9.0-2+deb10u2 | python-unbound-dbgsym_1.9.0-2+deb10u2_amd64.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
88.8%