CVE-2006-1173 Denial of service in n/a

Medium 5.0 Published Updated

Remote attackers can cause a denial of service in Sendmail by sending deeply nested malformed MIME messages that exhaust the stack.

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

What is CVE-2006-1173?

CVE-2006-1173 is a medium-severity denial of service vulnerability in n/a, published on 7 Jun 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Sendmail before 8.13.7 allows remote attackers to cause a denial of service via deeply nested, malformed multipart MIME messages that exhaust the stack during the recursive mime8to7 function for performing 8-bit to 7-bit conversion, which prevents Sendmail from delivering queued messages and might lead to disk consumption by core dump files.

Weakness: CWE-399

Which versions are affected by CVE-2006-1173?

It affects 1 product.

Linux distribution packages (40)
sendmail Red Hat:enterprise_linux:3::asAll versions0:8.12.11-4.RHEL3.6
sendmail-cf Red Hat:enterprise_linux:3::asAll versions0:8.12.11-4.RHEL3.6
sendmail-debuginfo Red Hat:enterprise_linux:3::asAll versions0:8.12.11-4.RHEL3.6
sendmail-devel Red Hat:enterprise_linux:3::asAll versions0:8.12.11-4.RHEL3.6
sendmail-doc Red Hat:enterprise_linux:3::asAll versions0:8.12.11-4.RHEL3.6
sendmail Red Hat:enterprise_linux:3::desktopAll versions0:8.12.11-4.RHEL3.6
sendmail-cf Red Hat:enterprise_linux:3::desktopAll versions0:8.12.11-4.RHEL3.6
sendmail-debuginfo Red Hat:enterprise_linux:3::desktopAll versions0:8.12.11-4.RHEL3.6
sendmail-devel Red Hat:enterprise_linux:3::desktopAll versions0:8.12.11-4.RHEL3.6
sendmail-doc Red Hat:enterprise_linux:3::desktopAll versions0:8.12.11-4.RHEL3.6
sendmail Red Hat:enterprise_linux:3::esAll versions0:8.12.11-4.RHEL3.6
sendmail-cf Red Hat:enterprise_linux:3::esAll versions0:8.12.11-4.RHEL3.6
sendmail-debuginfo Red Hat:enterprise_linux:3::esAll versions0:8.12.11-4.RHEL3.6
sendmail-devel Red Hat:enterprise_linux:3::esAll versions0:8.12.11-4.RHEL3.6
sendmail-doc Red Hat:enterprise_linux:3::esAll versions0:8.12.11-4.RHEL3.6
sendmail Red Hat:enterprise_linux:3::wsAll versions0:8.12.11-4.RHEL3.6
sendmail-cf Red Hat:enterprise_linux:3::wsAll versions0:8.12.11-4.RHEL3.6
sendmail-debuginfo Red Hat:enterprise_linux:3::wsAll versions0:8.12.11-4.RHEL3.6
sendmail-devel Red Hat:enterprise_linux:3::wsAll versions0:8.12.11-4.RHEL3.6
sendmail-doc Red Hat:enterprise_linux:3::wsAll versions0:8.12.11-4.RHEL3.6
sendmail Red Hat:enterprise_linux:4::asAll versions0:8.13.1-3.RHEL4.5
sendmail-cf Red Hat:enterprise_linux:4::asAll versions0:8.13.1-3.RHEL4.5
sendmail-debuginfo Red Hat:enterprise_linux:4::asAll versions0:8.13.1-3.RHEL4.5
sendmail-devel Red Hat:enterprise_linux:4::asAll versions0:8.13.1-3.RHEL4.5
sendmail-doc Red Hat:enterprise_linux:4::asAll versions0:8.13.1-3.RHEL4.5
sendmail Red Hat:enterprise_linux:4::desktopAll versions0:8.13.1-3.RHEL4.5
sendmail-cf Red Hat:enterprise_linux:4::desktopAll versions0:8.13.1-3.RHEL4.5
sendmail-debuginfo Red Hat:enterprise_linux:4::desktopAll versions0:8.13.1-3.RHEL4.5
sendmail-devel Red Hat:enterprise_linux:4::desktopAll versions0:8.13.1-3.RHEL4.5
sendmail-doc Red Hat:enterprise_linux:4::desktopAll versions0:8.13.1-3.RHEL4.5
sendmail Red Hat:enterprise_linux:4::esAll versions0:8.13.1-3.RHEL4.5
sendmail-cf Red Hat:enterprise_linux:4::esAll versions0:8.13.1-3.RHEL4.5
sendmail-debuginfo Red Hat:enterprise_linux:4::esAll versions0:8.13.1-3.RHEL4.5
sendmail-devel Red Hat:enterprise_linux:4::esAll versions0:8.13.1-3.RHEL4.5
sendmail-doc Red Hat:enterprise_linux:4::esAll versions0:8.13.1-3.RHEL4.5
sendmail Red Hat:enterprise_linux:4::wsAll versions0:8.13.1-3.RHEL4.5
sendmail-cf Red Hat:enterprise_linux:4::wsAll versions0:8.13.1-3.RHEL4.5
sendmail-debuginfo Red Hat:enterprise_linux:4::wsAll versions0:8.13.1-3.RHEL4.5
sendmail-devel Red Hat:enterprise_linux:4::wsAll versions0:8.13.1-3.RHEL4.5
sendmail-doc Red Hat:enterprise_linux:4::wsAll versions0:8.13.1-3.RHEL4.5

Products include Sendmail Sendmail.

How do I fix CVE-2006-1173?

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-2006-1173 being exploited?

There is no known exploitation of CVE-2006-1173 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2006-1173, DSA-1155, GHSA-2rh9-mcg8-96mq, RHSA-2006:0515.

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