CVE-2012-3817 Denial of service in n/a
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::client | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-debuginfo Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-libs Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-sdb Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-utils Red Hat:enterprise_linux:5::client | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-chroot Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-debuginfo Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-devel Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-libbind-devel Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind97 Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-10.P2.el5_8.2 |
bind97-chroot Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-10.P2.el5_8.2 |
bind97-debuginfo Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-10.P2.el5_8.2 |
bind97-devel Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-10.P2.el5_8.2 |
bind97-libs Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-10.P2.el5_8.2 |
bind97-utils Red Hat:enterprise_linux:5::client_workstation | All versions | 32:9.7.0-10.P2.el5_8.2 |
caching-nameserver Red Hat:enterprise_linux:5::client_workstation | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-chroot Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-debuginfo Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-devel Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-libbind-devel Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-libs Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-sdb Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind-utils Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind97 Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-10.P2.el5_8.2 |
bind97-chroot Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-10.P2.el5_8.2 |
bind97-debuginfo Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-10.P2.el5_8.2 |
bind97-devel Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-10.P2.el5_8.2 |
bind97-libs Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-10.P2.el5_8.2 |
bind97-utils Red Hat:enterprise_linux:5::server | All versions | 32:9.7.0-10.P2.el5_8.2 |
caching-nameserver Red Hat:enterprise_linux:5::server | All versions | 30:9.3.6-20.P1.el5_8.2 |
bind Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.10.rc1.el6_3.2 |
bind-chroot Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.10.rc1.el6_3.2 |
bind-debuginfo Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.10.rc1.el6_3.2 |
bind-devel Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.10.rc1.el6_3.2 |
bind-libs Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.10.rc1.el6_3.2 |
bind-sdb Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.10.rc1.el6_3.2 |
bind-utils Red Hat:enterprise_linux:6::client | All versions | 32:9.8.2-0.10.rc1.el6_3.2 |
bind Red Hat:enterprise_linux:6::computenode | All versions | 32:9.8.2-0.10.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.
Other vulnerabilities in Isc Bind
Sources
Also known as DEBIAN-CVE-2012-3817, DSA-2517-1, GHSA-p54h-xvx8-c742, RHSA-2012:1122, RHSA-2012:1123.