CVE-2012-3817 Denial of service in n/a

High 7.8 Published Updated

Remote attackers can cause a denial of service in ISC BIND by sending many queries when DNSSEC validation is enabled.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2012-3817?

CVE-2012-3817 is a high-severity denial of service vulnerability in Isc Bind, published on 25 Jul 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ISC BIND 9.4.x, 9.5.x, 9.6.x, and 9.7.x before 9.7.6-P2; 9.8.x before 9.8.3-P2; 9.9.x before 9.9.1-P2; and 9.6-ESV before 9.6-ESV-R7-P2, when DNSSEC validation is enabled, does not properly initialize the failing-query cache, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) by sending many queries.

Weakness: CWE-20

Which versions are affected by CVE-2012-3817?

It affects 1 product.

Linux distribution packages (40)
bind Red Hat:enterprise_linux:5::clientAll versions30:9.3.6-20.P1.el5_8.2
bind-debuginfo Red Hat:enterprise_linux:5::clientAll versions30:9.3.6-20.P1.el5_8.2
bind-libs Red Hat:enterprise_linux:5::clientAll versions30:9.3.6-20.P1.el5_8.2
bind-sdb Red Hat:enterprise_linux:5::clientAll versions30:9.3.6-20.P1.el5_8.2
bind-utils Red Hat:enterprise_linux:5::clientAll versions30:9.3.6-20.P1.el5_8.2
bind Red Hat:enterprise_linux:5::client_workstationAll versions30:9.3.6-20.P1.el5_8.2
bind-chroot Red Hat:enterprise_linux:5::client_workstationAll versions30:9.3.6-20.P1.el5_8.2
bind-debuginfo Red Hat:enterprise_linux:5::client_workstationAll versions30:9.3.6-20.P1.el5_8.2
bind-devel Red Hat:enterprise_linux:5::client_workstationAll versions30:9.3.6-20.P1.el5_8.2
bind-libbind-devel Red Hat:enterprise_linux:5::client_workstationAll versions30:9.3.6-20.P1.el5_8.2
bind97 Red Hat:enterprise_linux:5::client_workstationAll versions32:9.7.0-10.P2.el5_8.2
bind97-chroot Red Hat:enterprise_linux:5::client_workstationAll versions32:9.7.0-10.P2.el5_8.2
bind97-debuginfo Red Hat:enterprise_linux:5::client_workstationAll versions32:9.7.0-10.P2.el5_8.2
bind97-devel Red Hat:enterprise_linux:5::client_workstationAll versions32:9.7.0-10.P2.el5_8.2
bind97-libs Red Hat:enterprise_linux:5::client_workstationAll versions32:9.7.0-10.P2.el5_8.2
bind97-utils Red Hat:enterprise_linux:5::client_workstationAll versions32:9.7.0-10.P2.el5_8.2
caching-nameserver Red Hat:enterprise_linux:5::client_workstationAll versions30:9.3.6-20.P1.el5_8.2
bind Red Hat:enterprise_linux:5::serverAll versions30:9.3.6-20.P1.el5_8.2
bind-chroot Red Hat:enterprise_linux:5::serverAll versions30:9.3.6-20.P1.el5_8.2
bind-debuginfo Red Hat:enterprise_linux:5::serverAll versions30:9.3.6-20.P1.el5_8.2
bind-devel Red Hat:enterprise_linux:5::serverAll versions30:9.3.6-20.P1.el5_8.2
bind-libbind-devel Red Hat:enterprise_linux:5::serverAll versions30:9.3.6-20.P1.el5_8.2
bind-libs Red Hat:enterprise_linux:5::serverAll versions30:9.3.6-20.P1.el5_8.2
bind-sdb Red Hat:enterprise_linux:5::serverAll versions30:9.3.6-20.P1.el5_8.2
bind-utils Red Hat:enterprise_linux:5::serverAll versions30:9.3.6-20.P1.el5_8.2
bind97 Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-10.P2.el5_8.2
bind97-chroot Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-10.P2.el5_8.2
bind97-debuginfo Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-10.P2.el5_8.2
bind97-devel Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-10.P2.el5_8.2
bind97-libs Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-10.P2.el5_8.2
bind97-utils Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-10.P2.el5_8.2
caching-nameserver Red Hat:enterprise_linux:5::serverAll versions30:9.3.6-20.P1.el5_8.2
bind Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.10.rc1.el6_3.2
bind-chroot Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.10.rc1.el6_3.2
bind-debuginfo Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.10.rc1.el6_3.2
bind-devel Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.10.rc1.el6_3.2
bind-libs Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.10.rc1.el6_3.2
bind-sdb Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.10.rc1.el6_3.2
bind-utils Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.10.rc1.el6_3.2
bind Red Hat:enterprise_linux:6::computenodeAll versions32:9.8.2-0.10.rc1.el6_3.2

Products include Isc Bind.

How do I fix CVE-2012-3817?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2012-3817 being exploited?

There is no known exploitation of CVE-2012-3817 in the wild and no public exploit code.

All Isc Bind vulnerabilities

Sources

Also known as DEBIAN-CVE-2012-3817, DSA-2517-1, GHSA-p54h-xvx8-c742, RHSA-2012:1122, RHSA-2012:1123.

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