National Cyber Awareness System

Vulnerability Summary for CVE-2008-6107

Overview

The (1) sys32_mremap function in arch/sparc64/kernel/sys_sparc32.c, the (2) sparc_mmap_check function in arch/sparc/kernel/sys_sparc.c, and the (3) sparc64_mmap_check function in arch/sparc64/kernel/sys_sparc.c, in the Linux kernel before 2.6.25.4, omit some virtual-address range (aka span) checks when the mremap MREMAP_FIXED bit is not set, which allows local users to cause a denial of service (panic) via unspecified mremap calls, a related issue to CVE-2008-2137.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

Vendor Statements (disclaimer)

Official Statement from Red Hat (02/12/2009)

Not vulnerable. Red Hat Enterprise Linux 2.1, 3, 4, and 5 do not ship for the SPARC architecture.

References to Advisories, Solutions, and Tools

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External Source: XF

Name: linux-kernel-virtual-address-dos(48710)

Hyperlink:http://xforce.iss.net/xforce/xfdb/48710

External Source: VUPEN

Name: ADV-2008-1655

Hyperlink:http://www.vupen.com/english/advisories/2008/1655/references

External Source: UBUNTU

Name: USN-751-1

Hyperlink:http://www.ubuntu.com/usn/usn-751-1

External Source: BID

Name: 33836

Hyperlink:http://www.securityfocus.com/bid/33836

External Source: CONFIRM

Name: http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.4

Hyperlink:http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.4

External Source: SECTRACK

Name: 1020120

Hyperlink:http://securitytracker.com/id?1020120

External Source: SECUNIA

Name: 30258

Hyperlink:http://secunia.com/advisories/30258

External Source: MLIST

Name: [linux-kernel] 20080513 [patch 25/37] sparc: Fix mremap address range validation.

Hyperlink:http://marc.info/?l=linux-kernel&m=121071103304610&w=2