National Cyber Awareness System

Vulnerability Summary for CVE-2011-4127

Overview

The Linux kernel before 3.2.2 does not properly restrict SG_IO ioctl calls, which allows local users to bypass intended restrictions on disk read and write operations by sending a SCSI command to (1) a partition block device or (2) an LVM volume.

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://github.com/torvalds/linux/commit/ec8013beddd717d1740cfefb1a9b900deef85462

Type: Patch Information; Exploit

Hyperlink:https://github.com/torvalds/linux/commit/ec8013beddd717d1740cfefb1a9b900deef85462

External Source: CONFIRM

Name: https://github.com/torvalds/linux/commit/0bfc96cb77224736dfa35c3c555d37b3646ef35e

Type: Patch Information; Exploit

Hyperlink:https://github.com/torvalds/linux/commit/0bfc96cb77224736dfa35c3c555d37b3646ef35e

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=752375

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=752375

External Source: MLIST

Name: [oss-security] 20111222 CVE-2011-4127 kernel: possible privilege escalation via SG_IO ioctl

Hyperlink:http://www.openwall.com/lists/oss-security/2011/12/22/5

External Source: CONFIRM

Name: http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2

Hyperlink:http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2

External Source: SECUNIA

Name: 48898

Hyperlink:http://secunia.com/advisories/48898

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ec8013beddd717d1740cfefb1a9b900deef85462

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ec8013beddd717d1740cfefb1a9b900deef85462

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0bfc96cb77224736dfa35c3c555d37b3646ef35e

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0bfc96cb77224736dfa35c3c555d37b3646ef35e