CVE-2007-0494 Denial of service in n/a

Medium 4.3 Published Updated

Remote attackers can cause a denial of service in ISC BIND by sending a specific DNS query response, requiring DNSSEC validation to be 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-2007-0494?

CVE-2007-0494 is a medium-severity denial of service vulnerability in Isc Bind, published on 25 Jan 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ISC BIND 9.0.x, 9.1.x, 9.2.0 up to 9.2.7, 9.3.0 up to 9.3.3, 9.4.0a1 up to 9.4.0a6, 9.4.0b1 up to 9.4.0b4, 9.4.0rc1, and 9.5.0a1 (Bind Forum only) allows remote attackers to cause a denial of service (exit) via a type * (ANY) DNS query response that contains multiple RRsets, which triggers an assertion error, aka the "DNSSEC Validation" vulnerability.

Weakness: CWE-19

Which versions are affected by CVE-2007-0494?

It affects 1 product.

Linux distribution packages (40)
bind Red Hat:enterprise_linux:2.1::asAll versions0:9.2.1-8.EL2
bind-devel Red Hat:enterprise_linux:2.1::asAll versions0:9.2.1-8.EL2
bind-utils Red Hat:enterprise_linux:2.1::asAll versions0:9.2.1-8.EL2
bind Red Hat:enterprise_linux:2.1::awAll versions0:9.2.1-8.EL2
bind-devel Red Hat:enterprise_linux:2.1::awAll versions0:9.2.1-8.EL2
bind-utils Red Hat:enterprise_linux:2.1::awAll versions0:9.2.1-8.EL2
bind Red Hat:enterprise_linux:2.1::esAll versions0:9.2.1-8.EL2
bind-devel Red Hat:enterprise_linux:2.1::esAll versions0:9.2.1-8.EL2
bind-utils Red Hat:enterprise_linux:2.1::esAll versions0:9.2.1-8.EL2
bind Red Hat:enterprise_linux:2.1::wsAll versions0:9.2.1-8.EL2
bind-devel Red Hat:enterprise_linux:2.1::wsAll versions0:9.2.1-8.EL2
bind-utils Red Hat:enterprise_linux:2.1::wsAll versions0:9.2.1-8.EL2
bind Red Hat:enterprise_linux:3::asAll versions20:9.2.4-20.EL3
bind-chroot Red Hat:enterprise_linux:3::asAll versions20:9.2.4-20.EL3
bind-debuginfo Red Hat:enterprise_linux:3::asAll versions20:9.2.4-20.EL3
bind-devel Red Hat:enterprise_linux:3::asAll versions20:9.2.4-20.EL3
bind-libs Red Hat:enterprise_linux:3::asAll versions20:9.2.4-20.EL3
bind-utils Red Hat:enterprise_linux:3::asAll versions20:9.2.4-20.EL3
bind Red Hat:enterprise_linux:3::desktopAll versions20:9.2.4-20.EL3
bind-chroot Red Hat:enterprise_linux:3::desktopAll versions20:9.2.4-20.EL3
bind-debuginfo Red Hat:enterprise_linux:3::desktopAll versions20:9.2.4-20.EL3
bind-devel Red Hat:enterprise_linux:3::desktopAll versions20:9.2.4-20.EL3
bind-libs Red Hat:enterprise_linux:3::desktopAll versions20:9.2.4-20.EL3
bind-utils Red Hat:enterprise_linux:3::desktopAll versions20:9.2.4-20.EL3
bind Red Hat:enterprise_linux:3::esAll versions20:9.2.4-20.EL3
bind-chroot Red Hat:enterprise_linux:3::esAll versions20:9.2.4-20.EL3
bind-debuginfo Red Hat:enterprise_linux:3::esAll versions20:9.2.4-20.EL3
bind-devel Red Hat:enterprise_linux:3::esAll versions20:9.2.4-20.EL3
bind-libs Red Hat:enterprise_linux:3::esAll versions20:9.2.4-20.EL3
bind-utils Red Hat:enterprise_linux:3::esAll versions20:9.2.4-20.EL3
bind Red Hat:enterprise_linux:3::wsAll versions20:9.2.4-20.EL3
bind-chroot Red Hat:enterprise_linux:3::wsAll versions20:9.2.4-20.EL3
bind-debuginfo Red Hat:enterprise_linux:3::wsAll versions20:9.2.4-20.EL3
bind-devel Red Hat:enterprise_linux:3::wsAll versions20:9.2.4-20.EL3
bind-libs Red Hat:enterprise_linux:3::wsAll versions20:9.2.4-20.EL3
bind-utils Red Hat:enterprise_linux:3::wsAll versions20:9.2.4-20.EL3
bind Red Hat:enterprise_linux:4::asAll versions20:9.2.4-24.EL4
bind-chroot Red Hat:enterprise_linux:4::asAll versions20:9.2.4-24.EL4
bind-debuginfo Red Hat:enterprise_linux:4::asAll versions20:9.2.4-24.EL4
bind-devel Red Hat:enterprise_linux:4::asAll versions20:9.2.4-24.EL4

Products include Isc Bind.

How do I fix CVE-2007-0494?

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-2007-0494 being exploited?

There is no known exploitation of CVE-2007-0494 in the wild and no public exploit code.

All Isc Bind vulnerabilities

Sources

Also known as DEBIAN-CVE-2007-0494, DSA-1254-1, GHSA-vhvp-gwh8-h6v7, RHSA-2007:0044.

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