DebianDEBIAN:DLA-1676-1:A3957[SECURITY] [DLA 1676-1] unbound security update
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.004 Low
EPSS
Percentile
72.7%
Package : unbound
Version : 1.4.22-3+deb8u4
CVE ID : CVE-2017-15105
Debian Bug : 887733
Ralph Dolmans and Karst Koymans found a flaw in the way unbound, a
validating, recursive, caching DNS resolver, 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.
For more information please refer to the upstream advisory at
https://unbound.net/downloads/CVE-2017-15105.txt.
For Debian 8 "Jessie", this problem has been fixed in version
1.4.22-3+deb8u4.
We recommend that you upgrade your unbound packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 9 | arm64 | unbound | < 1.6.0-3+deb9u2 | unbound_1.6.0-3+deb9u2_arm64.deb |
| Debian | 9 | ppc64el | python-unbound | < 1.6.0-3+deb9u2 | python-unbound_1.6.0-3+deb9u2_ppc64el.deb |
| Debian | 9 | ppc64el | unbound-host | < 1.6.0-3+deb9u2 | unbound-host_1.6.0-3+deb9u2_ppc64el.deb |
| Debian | 8 | amd64 | unbound-host | < 1.4.22-3+deb8u4 | unbound-host_1.4.22-3+deb8u4_amd64.deb |
| Debian | 7 | amd64 | unbound-anchor | < 1.4.17-3+deb7u3 | unbound-anchor_1.4.17-3+deb7u3_amd64.deb |
| Debian | 9 | ppc64el | unbound-anchor-dbgsym | < 1.6.0-3+deb9u2 | unbound-anchor-dbgsym_1.6.0-3+deb9u2_ppc64el.deb |
| Debian | 9 | mipsel | python3-unbound | < 1.6.0-3+deb9u2 | python3-unbound_1.6.0-3+deb9u2_mipsel.deb |
| Debian | 9 | mips64el | python-unbound | < 1.6.0-3+deb9u2 | python-unbound_1.6.0-3+deb9u2_mips64el.deb |
| Debian | 9 | armel | unbound-anchor-dbgsym | < 1.6.0-3+deb9u2 | unbound-anchor-dbgsym_1.6.0-3+deb9u2_armel.deb |
| Debian | 9 | mips | unbound-dbgsym | < 1.6.0-3+deb9u2 | unbound-dbgsym_1.6.0-3+deb9u2_mips.deb |
Related
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.004 Low
EPSS
Percentile
72.7%