National Cyber Awareness System

Vulnerability Summary for CVE-2010-4668

Overview

The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 2.6.37-rc7 allows local users to cause a denial of service (panic) via a zero-length I/O request in a device ioctl to a SCSI device, related to an unaligned map. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4163.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

Name: https://patchwork.kernel.org/patch/363282/

Type: Patch Information

Hyperlink:https://patchwork.kernel.org/patch/363282/

External Source: MLIST

Name: [oss-security] 20101130 Re: CVE request: kernel: Multiple DoS issues in block layer

Type: Patch Information

Hyperlink:http://openwall.com/lists/oss-security/2010/11/30/7

External Source: MLIST

Name: [oss-security] 20101130 Re: CVE request: kernel: Multiple DoS issues in block layer

Type: Patch Information

Hyperlink:http://openwall.com/lists/oss-security/2010/11/30/4

External Source: MLIST

Name: [oss-security] 20101129 Re: CVE request: kernel: Multiple DoS issues in block layer

Type: Patch Information

Hyperlink:http://openwall.com/lists/oss-security/2010/11/29/1

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5478755616ae2ef1ce144dded589b62b2a50d575

Type: Patch Information

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5478755616ae2ef1ce144dded589b62b2a50d575

External Source: XF

Name: linux-blkrqmapuseriov-dos(64496)

Hyperlink:http://xforce.iss.net/xforce/xfdb/64496

External Source: BID

Name: 45660

Hyperlink:http://www.securityfocus.com/bid/45660

External Source: REDHAT

Name: RHSA-2011:0007

Hyperlink:http://www.redhat.com/support/errata/RHSA-2011-0007.html

External Source: CONFIRM

Name: http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc7

Hyperlink:http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc7

External Source: SECUNIA

Name: 42890

Type: Advisory

Hyperlink:http://secunia.com/advisories/42890

External Source: MLIST

Name: [linux-kernel] 20101129 Re: [PATCH] block: check for proper length of iov entries earlier in blk_rq_map_user_iov()

Hyperlink:http://lkml.org/lkml/2010/11/29/70

External Source: MLIST

Name: [linux-kernel] 20101129 [PATCH] block: check for proper length of iov entries earlier in blk_rq_map_user_iov()

Hyperlink:http://lkml.org/lkml/2010/11/29/68