Array index error in the tcm_vhost_make_tpg function in drivers/vhost/scsi.c in the Linux kernel before 4.0 might allow guest OS users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted VHOST_SCSI_SET_ENDPOINT ioctl call. NOTE: the affected function was renamed to vhost_scsi_make_tpg before the vulnerability was announced.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-4036 from the MITRE CVE dictionary dictionary and NIST NVD.
Not vulnerable. This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6 and 7, and Red Hat Enterprise MRG as they do not have CONFIG_VHOST_SCSI directive enabled in the build configuration.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 4.9 |
|---|---|
| Base Metrics | AV:L/AC:L/Au:N/C:N/I:N/A:C |
| Access Vector | Local |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Complete |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 2 | kernel-rt | Not affected |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected |
| Red Hat Enterprise Linux 7 | kernel | Not affected |
| Red Hat Enterprise Linux 6 | kernel | Not affected |
| Red Hat Enterprise Linux 5 | kernel | Not affected |
Vulmon