A Security Vulnerability in Solaris 10 Involving the SCTP Protocol May Result in a Panic and Denial of Service (DoS)

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A Security Vulnerability in Solaris 10 Involving the SCTP Protocol May Result in a Panic and Denial of Service (DoS)

1. Impact

A security vulnerability in Solaris 10 related to the SCTP protocol may allow a local or remote unprivileged user to cause a system panic resulting in a Denial of Service (DoS) condition. (See also sctp(7P)).

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

• Solaris 10 without patch 127127-08

x86 Platform

• Solaris 10 without patch 127128-08

Note: Solaris 8 and 9 are not affected by this issue.

This issue only affects systems with a "SCTP" socket in the "LISTEN" state. To determine if a host has such a socket, the following command may be used:

$ netstat -an -P sctp | grep LISTEN

If the system does not have any "SCTP" sockets in the "LISTEN" state, it is not vulnerable to this issue.

3. Symptoms

If the described issue occurs, the system may panic with a stack similar to the following:

4. Workaround

There is no workaround for this issue. Please see the Resolution section below.

5. Resolution

This issue is addressed in the following releases:

SPARC Platform

• Solaris 10 with patch 127127-08 or later

x86 Platform

• Solaris 10 with patch 127128-08 or later

For more information on Security Sun Alerts, see Technical Instruction ID 213557.

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Modification History

23-May-2008: Updated Contributing Factors section

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