CVE-2011-4127

Public Exploit

Description

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.

Category

4.6
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2011/12/22/5 mailing list
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html vendor advisory
http://secunia.com/advisories/48898 third party advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ec8013beddd717d1740cfefb1a9b900deef85462
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0bfc96cb77224736dfa35c3c555d37b3646ef35e
https://bugzilla.redhat.com/show_bug.cgi?id=752375
https://github.com/torvalds/linux/commit/0bfc96cb77224736dfa35c3c555d37b3646ef35e patch exploit
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
https://github.com/torvalds/linux/commit/ec8013beddd717d1740cfefb1a9b900deef85462 patch exploit
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2011-4127?
CVE-2011-4127 has been scored as a medium severity vulnerability.
How to fix CVE-2011-4127?
To fix CVE-2011-4127, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-4127 being actively exploited in the wild?
It is possible that CVE-2011-4127 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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