Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Suse | Linux Enterprise Server | 10 |
| Linux | Linux Kernel | <= 3.2.1 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
- http://secunia.com/advisories/48898
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
- http://www.openwall.com/lists/oss-security/2011/12/22/5
- https://bugzilla.redhat.com/show_bug.cgi?id=752375
- https://github.com/torvalds/linux/commit/0bfc96cb77224736dfa35c3c555d37b3646ef35ExploitPatch
- https://github.com/torvalds/linux/commit/ec8013beddd717d1740cfefb1a9b900deef8546ExploitPatch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
- http://secunia.com/advisories/48898
FAQ
What is CVE-2011-4127?
CVE-2011-4127 is a vulnerability with a CVSS score of 4.6 (MEDIUM). 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) ...
How severe is CVE-2011-4127?
CVE-2011-4127 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-4127?
Check the references section above for vendor advisories and patch information. Affected products include: Suse Linux Enterprise Server, Linux Linux Kernel.