A vulnerability, which was classified as critical, has been found in SGI IRIX 5.3/6.2/6.3/6.4 (Operating System). Affected by this issue is some unknown processing of the component DCE Handler. The manipulation as part of a Long Argument leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. CVE summarizes:

buffer overflow in osf distributed computing environment (dce) security demon (secd) in irix 6.4 and earlier allows attackers to cause a denial of service via a long principal group or organization.

The issue has been introduced in 11/01/1994. The weakness was released 10/24/1997 as not defined patch (Website). The advisory is available at patches.sgi.com. This vulnerability is handled as CVE-1999-1131. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 1088 days. During that time the estimated underground price was around $0-$5k.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at patches.sgi.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at X-Force (1123). ciac.llnl.gov is providing further details.

Productinfo

Type

• Operating System

Vendor

• SGI

Name

• IRIX

Version

• 5.3
• 6.2
• 6.3
• 6.4

License

• commercial

Support

• end of life

CPE 2.3info

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CPE 2.2info

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