#VU45094 Input validation error in Linux kernel - CVE-2011-1495

Vulnerability identifier: #VU45094

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2011-1495

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

drivers/scsi/mpt2sas/mpt2sas_ctl.c in the Linux kernel 2.6.38 and earlier does not validate (1) length and (2) offset values before performing memory copy operations, which might allow local users to gain privileges, cause a denial of service (memory corruption), or obtain sensitive information from kernel memory via a crafted ioctl call, related to the _ctl_do_mpt_command and _ctl_diag_read_buffer functions.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 2.6.0 - 2.6.38

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External links
https://downloads.avaya.com/css/P8/documents/100145416
https://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
https://lkml.org/lkml/2011/4/5/327
https://openwall.com/lists/oss-security/2011/04/05/32
https://openwall.com/lists/oss-security/2011/04/06/2
https://rhn.redhat.com/errata/RHSA-2011-0833.html
https://secunia.com/advisories/46397
https://www.securityfocus.com/archive/1/520102/100/0/threaded
https://www.securityfocus.com/bid/47185
https://www.vmware.com/security/advisories/VMSA-2011-0012.html
https://bugzilla.redhat.com/show_bug.cgi?id=694021
https://patchwork.kernel.org/patch/688021/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.