CVE-2016-6171
published 2017-02-09CVE-2016-6171: Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS…
PriorityP337high8.6CVSS 3.1
AVNACLPRNUINSCCNINAH
EPSS
2.80%
85.1th percentile
Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | knot | < knot 2.3.0-1 (bookworm) | knot 2.3.0-1 (bookworm) |
| knot-dns | knot_dns | < 2.3.0 | 2.3.0 |
| knot-dns | knot_dns | >= 0 < 2.3.0-1 | 2.3.0-1 |
| knot-dns | knot_dns | >= 0 < 2.3.0-1 | 2.3.0-1 |
| knot-dns | knot_dns | >= 0 < 2.3.0-1 | 2.3.0-1 |
| knot-dns | knot_dns | >= 0 < 2.3.0-1 | 2.3.0-1 |
CVSS provenance
nvdv3.18.6HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv8.6HIGH
vendor_debian8.6HIGH
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GHSA
GHSA-935v-fg4c-f9fr: Knot DNS before 2
ghsa_unreviewed·2022-05-13
CVE-2016-6171 [HIGH] CWE-400 GHSA-935v-fg4c-f9fr: Knot DNS before 2
Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR.
OSV
CVE-2016-6171: Knot DNS before 2
osv·2017-02-09·CVSS 8.6
CVE-2016-6171 [HIGH] CVE-2016-6171: Knot DNS before 2
Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR.
Debian
CVE-2016-6171: knot - Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (me...
vendor_debian·2016·CVSS 8.6
CVE-2016-6171 [HIGH] CVE-2016-6171: knot - Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (me...
Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR.
Scope: local
bookworm: resolved (fixed in 2.3.0-1)
bullseye: resolved (fixed in 2.3.0-1)
forky: resolved (fixed in 2.3.0-1)
sid: resolved (fixed in 2.3.0-1)
trixie: resolved (fixed in 2.3.0-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-6171 knot: Improper restriction of zone size limit [epel-all]
bugzilla·2016-07-07·CVSS 8.6
CVE-2016-6171 [HIGH] CVE-2016-6171 knot: Improper restriction of zone size limit [epel-all]
CVE-2016-6171 knot: Improper restriction of zone size limit [epel-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora EPEL.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fe
Bugzilla
CVE-2016-6171 knot: Improper restriction of zone size limit [fedora-all]
bugzilla·2016-07-07·CVSS 8.6
CVE-2016-6171 [HIGH] CVE-2016-6171 knot: Improper restriction of zone size limit [fedora-all]
CVE-2016-6171 knot: Improper restriction of zone size limit [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedor
Bugzilla
CVE-2016-6171 knot: Improper restriction of zone size limit
bugzilla·2016-07-07·CVSS 8.6
CVE-2016-6171 [HIGH] CVE-2016-6171 knot: Improper restriction of zone size limit
CVE-2016-6171 knot: Improper restriction of zone size limit
It was found that knot does not implement reasonable restrictions for zone sizes. This allows an explicitly configured primary DNS server for a zone to crash a secondary DNS server, affecting service of other zones hosted on the same secondary server.
CVE request:
http://seclists.org/oss-sec/2016/q3/19
Upstream bug:
https://gitlab.labs.nic.cz/labs/knot/merge_requests/541
Discussion:
Created knot tracking bugs for this issue:
Affects: fedora-all [bug 1353574]
Affects: epel-all [bug 1353575]
---
knot-2.3.0-2.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
---
knot-2.3.0-2.fc23 has been pushed to the Fedora 23 stable repository. If problems sti
http://www.openwall.com/lists/oss-security/2016/07/06/3http://www.openwall.com/lists/oss-security/2016/07/06/4http://www.securityfocus.com/bid/91678https://github.com/sischkg/xfer-limit/blob/master/README.mdhttps://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWShttps://gitlab.labs.nic.cz/labs/knot/issues/464https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.htmlhttp://www.openwall.com/lists/oss-security/2016/07/06/3http://www.openwall.com/lists/oss-security/2016/07/06/4http://www.securityfocus.com/bid/91678https://github.com/sischkg/xfer-limit/blob/master/README.mdhttps://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWShttps://gitlab.labs.nic.cz/labs/knot/issues/464https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html
2017-02-09
Published