CVE-2013-2266 Denial of service in n/a

High 7.8 Published Updated

Remote attackers can cause denial of service via memory exhaustion in ISC BIND by sending crafted regular expressions.

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

What is CVE-2013-2266?

CVE-2013-2266 is a high-severity denial of service vulnerability in Isc Bind, published on 28 Mar 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

libdns in ISC BIND 9.7.x and 9.8.x before 9.8.4-P2, 9.8.5 before 9.8.5b2, 9.9.x before 9.9.2-P2, and 9.9.3 before 9.9.3b2 on UNIX platforms allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression, as demonstrated by a memory-exhaustion attack against a machine running a named process.

Weakness: CWE-119

Which versions are affected by CVE-2013-2266?

It affects 1 product.

Linux distribution packages (34)
bind97 Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-17.P2.el5_9.1
bind97-chroot Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-17.P2.el5_9.1
bind97-debuginfo Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-17.P2.el5_9.1
bind97-devel Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-17.P2.el5_9.1
bind97-libs Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-17.P2.el5_9.1
bind97-utils Red Hat:enterprise_linux:5::serverAll versions32:9.7.0-17.P2.el5_9.1
bind Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-chroot Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-debuginfo Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-devel Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-libs Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-sdb Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-utils Red Hat:enterprise_linux:6::clientAll versions32:9.8.2-0.17.rc1.el6_4.4
bind Red Hat:enterprise_linux:6::computenodeAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-chroot Red Hat:enterprise_linux:6::computenodeAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-debuginfo Red Hat:enterprise_linux:6::computenodeAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-devel Red Hat:enterprise_linux:6::computenodeAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-libs Red Hat:enterprise_linux:6::computenodeAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-sdb Red Hat:enterprise_linux:6::computenodeAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-utils Red Hat:enterprise_linux:6::computenodeAll versions32:9.8.2-0.17.rc1.el6_4.4
bind Red Hat:enterprise_linux:6::serverAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-chroot Red Hat:enterprise_linux:6::serverAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-debuginfo Red Hat:enterprise_linux:6::serverAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-devel Red Hat:enterprise_linux:6::serverAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-libs Red Hat:enterprise_linux:6::serverAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-sdb Red Hat:enterprise_linux:6::serverAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-utils Red Hat:enterprise_linux:6::serverAll versions32:9.8.2-0.17.rc1.el6_4.4
bind Red Hat:enterprise_linux:6::workstationAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-chroot Red Hat:enterprise_linux:6::workstationAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-debuginfo Red Hat:enterprise_linux:6::workstationAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-devel Red Hat:enterprise_linux:6::workstationAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-libs Red Hat:enterprise_linux:6::workstationAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-sdb Red Hat:enterprise_linux:6::workstationAll versions32:9.8.2-0.17.rc1.el6_4.4
bind-utils Red Hat:enterprise_linux:6::workstationAll versions32:9.8.2-0.17.rc1.el6_4.4

Products include Isc Bind.

How do I fix CVE-2013-2266?

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-2013-2266 being exploited?

There is no known exploitation of CVE-2013-2266 in the wild and no public exploit code.

All Isc Bind vulnerabilities

Sources

Also known as DEBIAN-CVE-2013-2266, DSA-2656-1, GHSA-42v2-796f-qqmv, RHSA-2013:0689, RHSA-2013:0690.

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